Minecraft Forums

Running minecraft version 1.12.2

so i was trying out this site to paste some pixel art into my server and see how well it works,

https://bimbimma.com/minecraftmurals/

after running the first command (will paste the one command i ran at the bottom of post)

it says to run

/kill @e[type=commandblock_minecart,r=20]

which should remove the commandblock in a minecart that was placed originally, however since nothing can ever be simple, the command simply gives the output player not found. it has done this when ran from the world the commandblock_minecart was in, and from the console with the radius removed of course.

a major problem is if anyone gets near the command block, it crashes the server and then gives an internal server error and crashes everytime you try to log back in, unless your not in distance to load the chunks the commandblock is located in, it does this even with the command block field in the server properties set to false.

so i guess my question here is how in the heck do i remove this commandblock_minecart, and if you know why please explain why it says player not found instead of executing.

sorry i know the post inst well formatted, im just really frustrated atm.

Below is the original command that created the commandblock minecart.

summon falling_block ~ ~1 ~ {Block:activator_rail,Time:1,Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers:[{id:"commandblock_minecart",Passengers: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Starting Set"}],Command:"fill ~-2 ~-2 ~-74 ~-2 ~-2 ~-75 concrete_powder 7"}],Command:"setblock ~-2 ~-2 ~-73 stained_hardened_clay 8"}],Command:"fill ~-2 ~-2 ~-71 ~-2 ~-2 ~-72 concrete 8"}],Command:"setblock ~-2 ~-2 ~-70 wool 8"}],Command:"fill ~-2 ~-2 ~-68 ~-2 ~-2 ~-69 concrete 8"}],Command:"setblock ~-2 ~-2 ~-67 stained_hardened_clay 9"}],Command:"setblock ~-2 ~-2 ~-66 concrete 8"}],Command:"setblock ~-2 ~-2 ~-65 wool"}],Command:"setblock ~-2 ~-2 ~-26 stained_hardened_clay 9"}],Command:"setblock ~-2 ~-2 ~-25 concrete 8"}],Command:"setblock ~-2 ~-2 ~-24 stained_hardened_clay 9"}],Command:"setblock ~-2 ~-2 ~-23 concrete 8"}],Command:"setblock ~-2 ~-2 ~-22 concrete_powder 8"}],Command:"setblock ~-3 ~-2 ~-76 concrete 8"}],Command:"setblock ~-3 ~-2 ~-75 stained_hardened_clay"}],Command:"fill ~-3 ~-2 ~-69 ~-3 ~-2 ~-74 concrete"}],Command:"setblock ~-3 ~-2 ~-68 concrete_powder "}],Command:"setblock ~-3 ~-2 ~-67 concrete"}],Command:"setblock ~-3 ~-2 ~-66 stained_hardened_clay"}],Command:"setblock ~-3 ~-2 ~-65 concrete 8"}],Command:"setblock ~-3 ~-2 ~-64 stained_hardened_clay 9"}],Command:"setblock ~-3 ~-2 ~-30 concrete_powder "}],Command:"setblock ~-3 ~-2 ~-29 stained_hardened_clay 9"}],Command:"setblock ~-3 ~-2 ~-28 concrete_powder 8"}],Command:"fill ~-3 ~-2 ~-27 ~-2 ~-2 ~-27 stained_hardened_clay"}],Command:"fill ~-3 ~-2 ~-23 ~-3 ~-2 ~-26 concrete"}],Command:"setblock ~-3 ~-2 ~-22 stained_hardened_clay"}],Command:"fill ~-3 ~-2 ~-21 ~-2 ~-2 ~-21 concrete_powder 8"}],Command:"setblock ~-3 ~-2 ~-20 stained_hardened_clay 9"}],Command:"fill ~-4 ~-2 ~-75 ~-4 ~-2 ~-76 concrete_powder 8"}],Command:"fill ~-4 ~-2 ~-72 ~-4 ~-2 ~-74 stained_hardened_clay 8"}],Command:"fill ~-4 ~-2 ~-69 ~-4 ~-2 ~-71 stained_hardened_clay 2"}],Command:"setblock ~-4 ~-2 ~-68 stained_hardened_clay 8"}],Command:"setblock ~-4 ~-2 ~-67 wool 8"}],Command:"fill ~-4 ~-2 ~-65 ~-4 ~-2 ~-66 concrete"}],Command:"setblock ~-4 ~-2 ~-63 concrete 8"}],Command:"setblock ~-4 ~-2 ~-62 concrete 15"}],Command:"setblock ~-4 ~-2 ~-31 concrete 8"}],Command:"setblock ~-4 ~-2 ~-30 stained_hardened_clay"}],Command:"fill ~-4 ~-2 ~-28 ~-4 ~-2 ~-29 concrete"}],Command:"setblock ~-4 ~-2 ~-27 concrete_powder 8"}],Command:"fill ~-4 ~-2 ~-25 ~-4 ~-2 ~-26 concrete 8"}],Command:"fill ~-4 ~-2 ~-23 ~-4 ~-2 ~-24 stained_hardened_clay 8"}],Command:"setblock ~-4 ~-2 ~-22 concrete 8"}],Command:"setblock ~-4 ~-2 ~-21 wool 8"}],Command:"setblock ~-4 ~-2 ~-20 concrete_powder 8"}],Command:"fill ~-4 ~-2 ~-19 ~-3 ~-2 ~-19 concrete 8"}],Command:"setblock ~-5 ~-2 ~-75 stained_hardened_clay 10"}],Command:"setblock ~-5 ~-2 ~-68 concrete 6"}],Command:"setblock ~-5 ~-2 ~-67 stained_hardened_clay 2"}],Command:"setblock ~-5 ~-2 ~-66 stained_hardened_clay 10"}],Command:"setblock ~-5 ~-2 ~-65 wool 8"}],Command:"fill ~-5 ~-2 ~-64 ~-4 ~-2 ~-64 stained_hardened_clay"}],Command:"setblock ~-5 ~-2 ~-63 concrete"}],Command:"setblock ~-5 ~-2 ~-62 concrete 8"}],Command:"setblock ~-5 ~-2 ~-32 concrete 8"}],Command:"setblock ~-5 ~-2 ~-31 stained_hardened_clay"}],Command:"setblock ~-5 ~-2 ~-30 concrete"}],Command:"setblock ~-5 ~-2 ~-29 concrete_powder 8"}],Command:"fill ~-5 ~-2 ~-20 ~-5 ~-2 ~-21 stained_hardened_clay 2"}],Command:"setblock ~-5 ~-2 ~-19 stained_hardened_clay 10"}],Command:"fill ~-6 ~-2 ~-76 ~-5 ~-2 ~-76 stained_hardened_clay 15"}],Command:"setblock ~-6 ~-2 ~-64 stained_hardened_clay 8"}],Command:"fill ~-6 ~-2 ~-62 ~-6 ~-2 ~-63 concrete_powder 8"}],Command:"setblock ~-6 ~-2 ~-61 concrete 8"}],Command:"setblock ~-6 ~-2 ~-33 stained_hardened_clay 9"}],Command:"setblock ~-6 ~-2 ~-32 concrete_powder 8"}],Command:"setblock ~-6 ~-2 ~-31 concrete_powder "}],Command:"setblock ~-6 ~-2 ~-30 stained_hardened_clay 10"}],Command:"setblock ~-6 ~-2 ~-19 stained_hardened_clay 11"}],Command:"setblock ~-7 ~-2 ~-76 stained_hardened_clay 7"}],Command:"fill ~-7 ~-2 ~-71 ~-5 ~-2 ~-71 concrete 6"}],Command:"fill ~-7 ~-2 ~-69 ~-5 ~-2 ~-69 concrete 6"}],Command:"setblock ~-7 ~-2 ~-63 stained_hardened_clay 2"}],Command:"setblock ~-7 ~-2 ~-62 stained_hardened_clay"}],Command:"setblock ~-7 ~-2 ~-33 wool 8"}],Command:"setblock ~-7 ~-2 ~-32 concrete"}],Command:"setblock ~-7 ~-2 ~-31 stained_hardened_clay 8"}],Command:"fill ~-8 ~-2 ~-72 ~-5 ~-2 ~-74 concrete 6"}],Command:"setblock ~-8 ~-2 ~-71 stained_hardened_clay 2"}],Command:"fill ~-8 ~-2 ~-70 ~-5 ~-2 ~-70 concrete 6"}],Command:"fill ~-8 ~-2 ~-67 ~-6 ~-2 ~-68 concrete 6"}],Command:"fill ~-8 ~-2 ~-61 ~-7 ~-2 ~-61 stained_hardened_clay 9"}],Command:"setblock ~-8 ~-2 ~-34 wool 7"}],Command:"setblock ~-8 ~-2 ~-33 concrete"}],Command:"setblock ~-8 ~-2 ~-32 concrete_powder 8"}],Command:"setblock ~-8 ~-2 ~-31 stained_hardened_clay 2"}],Command:"fill ~-8 ~-2 ~-22 ~-5 ~-2 ~-28 concrete 6"}],Command:"fill ~-9 ~-2 ~-76 ~-8 ~-2 ~-76 stained_hardened_clay 15"}],Command:"fill ~-9 ~-2 ~-75 ~-6 ~-2 ~-75 concrete 6"}],Command:"setblock ~-9 ~-2 ~-74 stained_hardened_clay 2"}],Command:"fill ~-9 ~-2 ~-72 ~-9 ~-2 ~-73 stained_hardened_clay 10"}],Command:"fill ~-9 ~-2 ~-69 ~-9 ~-2 ~-71 stained_hardened_clay 2"}],Command:"fill ~-9 ~-2 ~-69 ~-8 ~-2 ~-69 stained_hardened_clay 2"}],Command:"fill ~-9 ~-2 ~-67 ~-9 ~-2 ~-68 stained_hardened_clay 10"}],Command:"fill ~-9 ~-2 ~-66 ~-6 ~-2 ~-66 concrete 6"}],Command:"fill ~-9 ~-2 ~-62 ~-8 ~-2 ~-62 stained_hardened_clay 10"}],Command:"setblock ~-9 ~-2 ~-60 concrete_powder 8"}],Command:"setblock ~-9 ~-2 ~-35 concrete 8"}],Command:"setblock ~-9 ~-2 ~-34 concrete_powder 8"}],Command:"setblock ~-9 ~-2 ~-33 stained_hardened_clay"}],Command:"setblock ~-9 ~-2 ~-32 stained_hardened_clay 10"}],Command:"fill ~-9 ~-2 ~-29 ~-6 ~-2 ~-29 concrete 6"}],Command:"fill ~-9 ~-2 ~-23 ~-9 ~-2 ~-27 stained_hardened_clay 10"}],Command:"setblock ~-9 ~-2 ~-22 stained_hardened_clay 2"}],Command:"fill ~-9 ~-2 ~-21 ~-6 ~-2 ~-21 concrete 6"}],Command:"setblock ~-10 ~-2 ~-76 concrete_powder 8"}],Command:"setblock ~-10 ~-2 ~-74 stained_hardened_clay 10"}],Command:"setblock ~-10 ~-2 ~-73 stained_hardened_clay 2"}],Command:"fill ~-10 ~-2 ~-67 ~-10 ~-2 ~-71 concrete 6"}],Command:"setblock ~-10 ~-2 ~-66 stained_hardened_clay 7"}],Command:"fill ~-10 ~-2 ~-65 ~-6 ~-2 ~-65 concrete 6"}],Command:"fill ~-10 ~-2 ~-61 ~-9 ~-2 ~-61 concrete 8"}],Command:"setblock ~-10 ~-2 ~-60 wool 8"}],Command:"setblock ~-10 ~-2 ~-35 concrete_powder 8"}],Command:"setblock ~-10 ~-2 ~-34 concrete_powder "}],Command:"setblock ~-10 ~-2 ~-33 stained_hardened_clay 8"}],Command:"setblock ~-10 ~-2 ~-32 concrete 6"}],Command:"setblock ~-10 ~-2 ~-29 stained_hardened_clay 10"}],Command:"fill ~-10 ~-2 ~-28 ~-9 ~-2 ~-28 stained_hardened_clay 2"}],Command:"setblock ~-10 ~-2 ~-22 stained_hardened_clay 10"}],Command:"setblock ~-10 ~-2 ~-21 stained_hardened_clay 2"}],Command:"setblock ~-11 ~-2 ~-76 wool"}],Command:"fill ~-11 ~-2 ~-75 ~-10 ~-2 ~-75 stained_hardened_clay 15"}],Command:"setblock ~-11 ~-2 ~-74 stained_hardened_clay 2"}],Command:"fill ~-11 ~-2 ~-72 ~-10 ~-2 ~-72 concrete 6"}],Command:"fill ~-11 ~-2 ~-62 ~-10 ~-2 ~-62 stained_hardened_clay 2"}],Command:"setblock ~-11 ~-2 ~-61 stained_hardened_clay 9"}],Command:"setblock ~-11 ~-2 ~-60 concrete_powder 7"}],Command:"fill ~-11 ~-2 ~-35 ~-11 ~-2 ~-36 concrete 8"}],Command:"setblock ~-11 ~-2 ~-34 stained_hardened_clay"}],Command:"setblock ~-11 ~-2 ~-33 stained_hardened_clay 10"}],Command:"setblock ~-11 ~-2 ~-32 stained_hardened_clay 2"}],Command:"fill ~-11 ~-2 ~-30 ~-7 ~-2 ~-30 concrete 6"}],Command:"setblock ~-11 ~-2 ~-29 stained_hardened_clay 2"}],Command:"setblock ~-11 ~-2
~-28 concrete 6"}],Command:"setblock ~-11 ~-2 ~-22 concrete 6"}],Command:"setblock ~-11 ~-2 ~-21 stained_hardened_clay 10"}],Command:"fill ~-11 ~-2 ~-20 ~-6 ~-2 ~-20 concrete 6"}],Command:"fill ~-11 ~-2 ~-19 ~-7 ~-2 ~-19 stained_hardened_clay 12"}],Command:"setblock ~-12 ~-2 ~-75 stained_hardened_clay 9"}],Command:"fill ~-12 ~-2 ~-73 ~-12 ~-2 ~-74 stained_hardened_clay 10"}],Command:"fill ~-12 ~-2 ~-73 ~-11 ~-2 ~-73 stained_hardened_clay 10"}],Command:"setblock ~-12 ~-2 ~-72 stained_hardened_clay 2"}],Command:"fill ~-12 ~-2 ~-63 ~-8 ~-2 ~-63 concrete 6"}],Command:"setblock ~-12 ~-2 ~-62 stained_hardened_clay 10"}],Command:"setblock ~-12 ~-2 ~-61 wool 7"}],Command:"setblock ~-12 ~-2 ~-60 concrete_powder 8"}],Command:"setblock ~-12 ~-2 ~-59 stained_hardened_clay 9"}],Command:"setblock ~-12 ~-2 ~-36 concrete_powder 7"}],Command:"setblock ~-12 ~-2 ~-34 concrete_powder 7"}],Command:"setblock ~-12 ~-2 ~-33 stained_hardened_clay 2"}],Command:"setblock ~-12 ~-2 ~-32 stained_hardened_clay 10"}],Command:"fill ~-12 ~-2 ~-31 ~-9 ~-2 ~-31 concrete 6"}],Command:"setblock ~-12 ~-2 ~-30 stained_hardened_clay 10"}],Command:"fill ~-12 ~-2 ~-20 ~-12 ~-2 ~-22 stained_hardened_clay 2"}],Command:"setblock ~-12 ~-2 ~-19 concrete 8"}],Command:"setblock ~-13 ~-2 ~-74 stained_hardened_clay 15"}],Command:"setblock ~-13 ~-2 ~-73 stained_hardened_clay 2"}],Command:"setblock ~-13 ~-2 ~-72 stained_hardened_clay 10"}],Command:"fill ~-13 ~-2 ~-66 ~-11 ~-2 ~-71 concrete 6"}],Command:"fill ~-13 ~-2 ~-65 ~-11 ~-2 ~-65 stained_hardened_clay 2"}],Command:"fill ~-13 ~-2 ~-64 ~-7 ~-2 ~-64 concrete 6"}],Command:"fill ~-13 ~-2 ~-62 ~-13 ~-2 ~-63 stained_hardened_clay 2"}],Command:"setblock ~-13 ~-2 ~-61 stained_hardened_clay 10"}],Command:"setblock ~-13 ~-2 ~-60 stained_hardened_clay"}],Command:"setblock ~-13 ~-2 ~-59 concrete_powder 7"}],Command:"setblock ~-13 ~-2 ~-58 wool"}],Command:"fill ~-13 ~-2 ~-35 ~-12 ~-2 ~-35 stained_hardened_clay"}],Command:"setblock ~-13 ~-2 ~-34 stained_hardened_clay 2"}],Command:"setblock ~-13 ~-2 ~-33 concrete 6"}],Command:"setblock ~-13 ~-2 ~-32 stained_hardened_clay 2"}],Command:"setblock ~-13 ~-2 ~-31 stained_hardened_clay 10"}],Command:"setblock ~-13 ~-2 ~-30 concrete 12"}],Command:"fill ~-13 ~-2 ~-28 ~-12 ~-2 ~-29 concrete 6"}],Command:"fill ~-13 ~-2 ~-25 ~-10 ~-2 ~-27 concrete 6"}],Command:"fill ~-13 ~-2 ~-23 ~-10 ~-2 ~-23 concrete 6"}],Command:"setblock ~-13 ~-2 ~-22 stained_hardened_clay 12"}],Command:"setblock ~-13 ~-2 ~-21 concrete 6"}],Command:"setblock ~-13 ~-2 ~-20 stained_hardened_clay 10"}],Command:"setblock ~-14 ~-2 ~-73 stained_hardened_clay 7"}],Command:"fill ~-14 ~-2 ~-70 ~-14 ~-2 ~-71 stained_hardened_clay 7"}],Command:"fill ~-14 ~-2 ~-68 ~-14 ~-2 ~-69 stained_hardened_clay 12"}],Command:"setblock ~-14 ~-2 ~-67 stained_hardened_clay 10"}],Command:"setblock ~-14 ~-2 ~-66 stained_hardened_clay 2"}],Command:"fill ~-14 ~-2 ~-63 ~-14 ~-2 ~-65 stained_hardened_clay 10"}],Command:"setblock ~-14 ~-2 ~-61 stained_hardened_clay 2"}],Command:"setblock ~-14 ~-2 ~-60 wool 8"}],Command:"setblock ~-14 ~-2 ~-59 concrete"}],Command:"setblock ~-14 ~-2 ~-58 concrete 8"}],Command:"fill ~-14 ~-2 ~-36 ~-13 ~-2 ~-36 wool 8"}],Command:"setblock ~-14 ~-2 ~-35 concrete 8"}],Command:"setblock ~-14 ~-2 ~-30 stained_hardened_clay 15"}],Command:"fill ~-14 ~-2 ~-28 ~-14 ~-2 ~-29 stained_hardened_clay 7"}],Command:"setblock ~-14 ~-2 ~-27 stained_hardened_clay 12"}],Command:"fill ~-14 ~-2 ~-25 ~-14 ~-2 ~-26 stained_hardened_clay 2"}],Command:"fill ~-14 ~-2 ~-24 ~-10 ~-2 ~-24 concrete 6"}],Command:"setblock ~-14 ~-2 ~-23 stained_hardened_clay 10"}],Command:"setblock ~-14 ~-2 ~-22 concrete 6"}],Command:"setblock ~-14 ~-2 ~-21 stained_hardened_clay 10"}],Command:"setblock ~-14 ~-2 ~-20 concrete"}],Command:"fill ~-15 ~-2 ~-72 ~-14 ~-2 ~-72 stained_hardened_clay 7"}],Command:"setblock ~-15 ~-2 ~-71 stained_hardened_clay 2"}],Command:"fill ~-15 ~-2 ~-67 ~-15 ~-2 ~-70 stained_hardened_clay 14"}],Command:"setblock ~-15 ~-2 ~-66 concrete 14"}],Command:"setblock ~-15 ~-2 ~-64 stained_hardened_clay 2"}],Command:"setblock ~-15 ~-2 ~-60 stained_hardened_clay 10"}],Command:"setblock ~-15 ~-2 ~-59 stained_hardened_clay"}],Command:"setblock ~-15 ~-2 ~-58 concrete_powder 8"}],Command:"setblock ~-15 ~-2 ~-57 wool 7"}],Command:"fill ~-15 ~-2 ~-37 ~-14 ~-2 ~-37 wool 7"}],Command:"setblock ~-15 ~-2 ~-36 concrete 8"}],Command:"setblock ~-15 ~-2 ~-35 stained_hardened_clay 10"}],Command:"fill ~-15 ~-2 ~-31 ~-14 ~-2 ~-31 concrete 6"}],Command:"fill ~-15 ~-2 ~-27 ~-15 ~-2 ~-29 stained_hardened_clay 14"}],Command:"setblock ~-15 ~-2 ~-26 wool 12"}],Command:"setblock ~-15 ~-2 ~-25 concrete 12"}],Command:"fill ~-15 ~-2 ~-23 ~-15 ~-2 ~-24 stained_hardened_clay 15"}],Command:"setblock ~-15 ~-2 ~-22 stained_hardened_clay 12"}],Command:"setblock ~-15 ~-2 ~-21 concrete 7"}],Command:"setblock ~-16 ~-2 ~-72 stained_hardened_clay 15"}],Command:"setblock ~-16 ~-2 ~-71 stained_hardened_clay 12"}],Command:"setblock ~-16 ~-2 ~-70 stained_hardened_clay 7"}],Command:"setblock ~-16 ~-2 ~-69 stained_hardened_clay 12"}],Command:"setblock ~-16 ~-2 ~-68 stained_hardened_clay 7"}],Command:"setblock ~-16 ~-2 ~-67 stained_hardened_clay 12"}],Command:"setblock ~-16 ~-2 ~-66 concrete 12"}],Command:"fill ~-16 ~-2 ~-65 ~-15 ~-2 ~-65 stained_hardened_clay 7"}],Command:"setblock ~-16 ~-2 ~-59 stained_hardened_clay 10"}],Command:"setblock ~-16 ~-2 ~-58 concrete"}],Command:"setblock ~-16 ~-2 ~-57 wool 8"}],Command:"setblock ~-16 ~-2 ~-39 wool"}],Command:"setblock ~-16 ~-2 ~-38 stained_hardened_clay 9"}],Command:"setblock ~-16 ~-2 ~-37 wool 8"}],Command:"fill ~-16 ~-2 ~-30 ~-15 ~-2 ~-30 stained_hardened_clay 12"}],Command:"fill ~-16 ~-2 ~-25 ~-16 ~-2 ~-29 stained_hardened_clay 14"}],Command:"setblock ~-16 ~-2 ~-24 concrete 12"}],Command:"setblock ~-16 ~-2 ~-22 concrete_powder 7"}],Command:"setblock ~-16 ~-2 ~-21 concrete 8"}],Command:"setblock ~-17 ~-2 ~-71 wool 7"}],Command:"setblock ~-17 ~-2 ~-70 stained_hardened_clay 12"}],Command:"fill ~-17 ~-2 ~-68 ~-17 ~-2 ~-69 stained_hardened_clay 14"}],Command:"setblock ~-17 ~-2 ~-67 concrete_powder 14"}],Command:"setblock ~-17 ~-2 ~-66 stained_hardened_clay 14"}],Command:"fill ~-17 ~-2 ~-64 ~-17 ~-2 ~-65 stained_hardened_clay 10"}],Command:"fill ~-17 ~-2 ~-64 ~-16 ~-2 ~-64 stained_hardened_clay 10"}],Command:"setblock ~-17 ~-2 ~-58 stained_hardened_clay 8"}],Command:"setblock ~-17 ~-2 ~-57 concrete 8"}],Command:"setblock ~-17 ~-2 ~-39 stained_hardened_clay 9"}],Command:"setblock ~-17 ~-2 ~-37 concrete 8"}],Command:"fill ~-17 ~-2 ~-31 ~-16 ~-2 ~-31 stained_hardened_clay 2"}],Command:"fill ~-17 ~-2 ~-29 ~-17 ~-2 ~-30 stained_hardened_clay 12"}],Command:"fill ~-17 ~-2 ~-27 ~-17 ~-2 ~-28 concrete 12"}],Command:"setblock ~-17 ~-2 ~-26 stained_hardened_clay 12"}],Command:"setblock ~-17 ~-2 ~-25 stained_hardened_clay 7"}],Command:"fill ~-17 ~-2 ~-23 ~-17 ~-2 ~-24 stained_hardened_clay 2"}],Command:"fill ~-17 ~-2 ~-23 ~-16 ~-2 ~-23 stained_hardened_clay 2"}],Command:"setblock ~-17 ~-2 ~-22 wool"}],Command:"setblock ~-18 ~-2 ~-71 stained_hardened_clay 15"}],Command:"setblock ~-18 ~-2 ~-70 stained_hardened_clay 2"}],Command:"fill ~-18 ~-2 ~-66 ~-18 ~-2 ~-69 stained_hardened_clay 15"}],Command:"setblock ~-18 ~-2 ~-65 stained_hardened_clay 7"}],Command:"setblock ~-18 ~-2 ~-64 stained_hardened_clay 12"}],Command:"setblock ~-18 ~-2 ~-58 stained_hardened_clay 2"}],Command:"setblock ~-18 ~-2 ~-39 concrete 8"}],Command:"fill ~-18 ~-2 ~-38 ~-17 ~-2 ~-38 wool 8"}],Command:"setblock ~-18 ~-2 ~-37 stained_hardened_clay 12"}],Command:"fill ~-18 ~-2 ~-36 ~-16 ~-2 ~-36 stained_hardened_clay 10"}],Command:"fill ~-18 ~-2 ~-35 ~-16 ~-2 ~-35 concrete 6"}],Command:"setblock ~-18 ~-2 ~-31 stained_hardened_clay 10"}],Command:"fill ~-18 ~-2 ~-26 ~-18 ~-2 ~-30 stained_hardened_clay 14"}],Command:"setblock ~-18 ~-2 ~-25 concrete 12"}],Command:"setblock ~-18 ~-2 ~-24 concrete 6"}],Command:"setblock ~-18 ~-2 ~-23 stained_hardened_clay 7"}],Command:"setblock ~-19 ~-2 ~-71 concrete 15"}],Command:"fill ~-19 ~-2 ~-64 ~-19 ~-2 ~-68 stained_hardened_clay 14"}],Command:"fill ~-19 ~-2 ~-63 ~-15 ~-2 ~-63 concrete 6"}],Command:"fill ~-19 ~-2 ~-57 ~-18 ~-2 ~-57 concrete 7"}],Command:"fill ~-19 ~-2 ~-40 ~-18 ~-2 ~-40 concrete_powder 7"}],Command:"setblock ~-19 ~-2 ~-39 wool 8"}],Command:"setblock ~-19 ~-2 ~-38 wool 7"}],Command:"setblock ~-19 ~-2 ~-31 stained_hardened_clay 7"}],Command:"setblock ~-19 ~-2 ~-30 stained_hardened_clay 12"}],Command:"fill ~-19 ~-2 ~-26 ~-19 ~-2 ~-29 stained_hardened_clay 7"}],Command:"setblock ~-19 ~-2 ~-25 stained_hardened_clay 2"}],Command:"setblock ~-19 ~-2 ~-24 stained_hardened_clay 10"}],Command:"setblock ~-19 ~-2 ~-23 concrete 8"}],Command:"fill ~-20 ~-2 ~-70 ~-19 ~-2 ~-70 stained_hardened_clay 15"}],Command:"fill ~-20 ~-2 ~-69 ~-19 ~-2 ~-69 stained_hardened_clay 10"}],Command:"setblock ~-20 ~-2 ~-67 concrete 12"}],Command:"fill ~-20 ~-2 ~-65 ~-20 ~-2 ~-66 stained_hardened_clay 12"}],Command:"setblock ~-20 ~-2 ~-64 stained_hardened_clay 7"}],Command:"setblock ~-20 ~-2 ~-63 stained_hardened_clay 2"}],Command:"fill ~-20 ~-2 ~-62 ~-14 ~-2 ~-62 concrete 6"}],Command:"setblock ~-20 ~-2 ~-57 stained_hardened_clay 8"}],Command:"fill ~-20 ~-2 ~-39 ~-20 ~-2 ~-40 concrete 7"}],Command:"fill ~-20 ~-2 ~-35 ~-19 ~-2 ~-35 stained_hardened_clay 2"}],Command:"fill ~-20 ~-2 ~-32 ~-14 ~-2 ~-32 concrete 6"}],Command:"setblock ~-20 ~-2 ~-31 concrete 12"}],Command:"setblock ~-20 ~-2 ~-30 concrete_powder 14"}],Command:"fill ~-20 ~-2 ~-28 ~-20 ~-2 ~-29 stained_hardened_clay 14"}],Command:"setblock ~-20 ~-2 ~-26 stained_hardened_clay 10"}],Command:"setblock ~-20 ~-2 ~-25 concrete 6"}],Command:"setblock ~-20 ~-2 ~-24 concrete_powder 7"}],Command:"setblock ~-21 ~-2 ~-70 concrete 8"}],Command:"fill ~-21 ~-2 ~-68 ~-21 ~-2 ~-69 stained_hardened_clay 12"}],Command:"fill ~-21 ~-2 ~-68 ~-20 ~-2 ~-68 stained_hardened_clay 12"}],Command:"fill ~-21 ~-2 ~-65 ~-21 ~-2 ~-67 stained_hardened_clay 14"}],Command:"setblock ~-21 ~-2 ~-64 concrete 12"}],Command:"setblock ~-21 ~-2 ~-63 stained_hardened_c
lay 12"}],Command:"setblock ~-21 ~-2 ~-62 stained_hardened_clay 2"}]}

There are few things you need to tell us:

1. What plugin/mod did u install in the server?

2. It only crash when you load the command block minecart?

3. Are the minecarts near the world spawn so that it loads permanently?

Before you asnwer, there are 2 posssible solutions you can try out:

1. Place a command block at world spawn, ticking this command:

/kill @e[type=commandblock_minecart]

2. Grab the world file into your computer, install and open mcedit. Then find those minecarts and delete them.