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Hi occasionally my minecraft crashes along with my friends' minecraft on our multiplayer server. The error says "Error while loading entity in world". IT happens quite often and would like to know how to fix it? here is my last crash report:

inecraft Crash Report ----inecraft Crash Report ----
WARNING: coremods are present: LoadingPlugin (Quark-r1.1-70.jar) BCModPlugin (backpacks+1.10.2+-+3.4.0.jar) ArsMagica2-Preloader (ArsMagica2-1.10.2-1.5.0-17b.jar)Contact their authors BEFORE contacting forge
// Surprise! Haha. Well, this is awkward.
Time: 2/10/18 10:42 PMDescription: Rendering entity in world
java.lang.ClassCastException: java.lang.Boolean cannot be cast to java.lang.String at drzhark.mocreatures.entity.MoCEntityAquatic.getPetName(MoCEntityAquatic.java:151) at drzhark.mocreatures.client.renderer.entity.MoCRenderDolphin.doRender(MoCRenderDolphin.java:26) at drzhark.mocreatures.client.renderer.entity.MoCRenderDolphin.func_76986_a(MoCRenderDolphin.java:16) at net.minecraft.client.renderer.entity.RenderManager.func_188391_a(RenderManager.java:398) at net.minecraft.client.renderer.entity.RenderManager.func_188388_a(RenderManager.java:375) at net.minecraft.client.renderer.RenderGlobal.func_180446_a(RenderGlobal.java:815) at net.minecraft.client.renderer.EntityRenderer.func_175068_a(EntityRenderer.java:1749) at net.minecraft.client.renderer.EntityRenderer.func_78471_a(EntityRenderer.java:1574) at net.minecraft.client.renderer.EntityRenderer.func_181560_a(EntityRenderer.java:1347) at net.minecraft.client.Minecraft.func_71411_J(Minecraft.java:1076) at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:371) at net.minecraft.client.main.Main.main(SourceFile:124) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:483) at net.minecraft.launchwrapper.Launch.launch(Launch.java:135) at net.minecraft.launchwrapper.Launch.main(Launch.java:28)

A detailed walkthrough of the error, its code path and all known details is as follows:---------------------------------------------------------------------------------------
-- Head --Thread: Client threadStacktrace: at drzhark.mocreatures.entity.MoCEntityAquatic.getPetName(MoCEntityAquatic.java:151) at drzhark.mocreatures.client.renderer.entity.MoCRenderDolphin.doRender(MoCRenderDolphin.java:26) at drzhark.mocreatures.client.renderer.entity.MoCRenderDolphin.func_76986_a(MoCRenderDolphin.java:16)
-- Entity being rendered --Details: Entity Type: mocreatures.Dolphin (drzhark.mocreatures.entity.aquatic.MoCEntityDolphin) Entity ID: 1264152 Entity Name: Dolphin Entity's Exact location: -104.50, 63.00, 263.50 Entity's Block location: World: (-105,63,263), Chunk: (at 7,3,7 in -7,16; contains blocks -112,0,256 to -97,255,271), Region: (-1,0; contains chunks -32,0 to -1,31, blocks -512,0,0 to -1,255,511) Entity's Momentum: 0.00, -0.71, 0.00 Entity's Passengers: [] Entity's Vehicle: ~~ERROR~~ NullPointerException: null
-- Renderer details --Details: Assigned renderer: [email protected]d286 Location: -71.04,-11.25,2.35 - World: (-72,-12,2), Chunk: (at 8,-1,2 in -5,0; contains blocks -80,0,0 to -65,255,15), Region: (-1,0; contains chunks -32,0 to -1,31, blocks -512,0,0 to -1,255,511) Rotation: 25.3125 Delta: 0.38914013Stacktrace: at net.minecraft.client.renderer.entity.RenderManager.func_188391_a(RenderManager.java:398) at net.minecraft.client.renderer.entity.RenderManager.func_188388_a(RenderManager.java:375) at net.minecraft.client.renderer.RenderGlobal.func_180446_a(RenderGlobal.java:815) at net.minecraft.client.renderer.EntityRenderer.func_175068_a(EntityRenderer.java:1749) at net.minecraft.client.renderer.EntityRenderer.func_78471_a(EntityRenderer.java:1574)
-- Affected level --Details: Level name: MpServer All players: 4 total; [EntityPlayerSP['yrrep'/1192968, l='MpServer', x=-33.44, y=74.25, z=261.32], EntityOtherPlayerMP['BruceVin'/1230425, l='MpServer', x=-36.25, y=73.00, z=262.36], EntityOtherPlayerMP['LullabyKitten'/1194146, l='MpServer', x=-52.51, y=70.00, z=262.43], EntityOtherPlayerMP['CYBRogue1'/871807, l='MpServer', x=-84.01, y=71.00, z=291.84]] Chunk stats: MultiplayerChunkCache: 441, 441 Level seed: 0 Level generator: ID 06 - BIOMESOP, ver 0. Features enabled: false Level generator options: Level spawn location: World: (-140,64,256), Chunk: (at 4,4,0 in -9,16; contains blocks -144,0,256 to -129,255,271), Region: (-1,0; contains chunks -32,0 to -1,31, blocks -512,0,0 to -1,255,511) Level time: 4669113 game time, 4945459 day time Level dimension: 0 Level storage version: 0x00000 - Unknown? Level weather: Rain time: 0 (now: false), thunder time: 0 (now: false) Level game mode: Game mode: survival (ID 0). Hardcore: false. Cheats: false Forced entities: 131 total; [MoCEntityLeopard['Leopard'/1249296, l='MpServer', x=50.93, y=77.00, z=387.55], EntitySkeleton['Skeleton'/1260053, l='MpServer', x=-87.50, y=43.00, z=278.50], MoCEntityShark['Shark'/1264154, l='MpServer', x=-113.50, y=11.00, z=304.50], MoCEntityDolphin['Dolphin'/1264152, l='MpServer', x=-104.50, y=63.00, z=263.50], EntityOtherPlayerMP['LullabyKitten'/1194146, l='MpServer', x=-51.78, y=70.00, z=259.29], EntityWitch['Witch'/1262595, l='MpServer', x=-73.50, y=42.00, z=231.50], EntityWitch['Witch'/1262594, l='MpServer', x=-75.50, y=42.00, z=229.50], EntityWitch['Witch'/1262593, l='MpServer', x=-72.50, y=42.00, z=231.50], EntityWitch['Witch'/1262592, l='MpServer', x=-72.50, y=42.00, z=230.50], MoCEntityLeopard['Leopard'/1249295, l='MpServer', x=46.84, y=76.00, z=384.87], EntityItem['item.item.rottenFlesh'/1262650, l='MpServer', x=10.24, y=87.00, z=229.88], EntityOtherPlayerMP['LullabyKitten'/1194146, l='MpServer', x=-57.37, y=75.00, z=256.95], EntityPlayerSP['yrrep'/1192968, l='MpServer', x=-33.44, y=74.25, z=261.32], MoCEntityHorseMob['HorseMob'/1263678, l='MpServer', x=-19.72, y=48.01, z=184.73], EntityZombie['Zombie'/1264163, l='MpServer', x=23.35, y=45.00, z=211.35], EntityTippedArrow['Arrow'/1263649, l='MpServer', x=-64.04, y=72.79, z=217.58], EntityZombie['entity.Zombie.name'/1262631, l='MpServer', x=-109.52, y=21.00, z=319.81], EntitySpider['Spider'/1262629, l='MpServer', x=-44.50, y=43.00, z=268.50], EntityItem['item.item.rottenFlesh'/1262634, l='MpServer', x=11.07, y=94.00, z=319.14], EntityColoredItemFrame['Colored Item Frame'/1206828, l='MpServer', x=-48.50, y=92.50, z=250.03], EntityOtherPlayerMP['LullabyKitten'/1194146, l='MpServer', x=-88.54, y=42.98, z=132.22], MoCEntitySilverSkeleton['SilverSkeleton'/1262678, l='MpServer', x=-21.81, y=59.00, z=239.48], EntityOtherPlayerMP['BruceVin'/1230425, l='MpServer', x=-36.25, y=73.00, z=262.36], EntityCow['Cow'/400973, l='MpServer', x=-49.08, y=71.00, z=296.87], EntitySkeleton['Skeleton'/1261656, l='MpServer', x=-38.50, y=45.00, z=191.50], EntityOtherPlayerMP['CYBRogue1'/871807, l='MpServer', x=-130.80, y=74.12, z=164.13], EntityZombie['Zombie'/1263682, l='MpServer', x=-28.50, y=47.00, z=192.50], EntityColoredItemFrame['Colored Item Frame'/1206848, l='MpServer', x=-49.50, y=92.50, z=250.03], EntityCow['Cow'/497237, l='MpServer', x=-49.08, y=71.00, z=295.86], EntityZombie['Zombie'/1263681, l='MpServer', x=-26.50, y=48.00, z=191.23], EntityZombie['Zombie'/1263680, l='MpServer', x=-28.50, y=47.00, z=187.50], EntityCow['Cow'/497235, l='MpServer', x=-51.08, y=71.00, z=291.07], EntityCow['Cow'/9816, l='MpServer', x=-52.88, y=71.00, z=295.16], EntityPegasus['entity.pegasus.name'/543313, l='MpServer', x=-45.05, y=72.00, z=253.13], EntityCreeper['Creeper'/1261128, l='MpServer', x=-17.50, y=47.00, z=184.50], EntityColoredItemFrame['Colored Item Frame'/1206863, l='MpServer', x=-50.50, y=92.50, z=250.03], EntityOtherPlayerMP['BruceVin'/1196158, l='MpServer', x=-81.10, y=85.00, z=179.45], EntityCow['Cow'/400996, l='MpServer', x=-52.49, y=71.00, z=297.52], EntityWitch['Witch'/1262197, l='MpServer', x=-105.51, y=59.00, z=271.71], MoCEntityAnt['Ant'/1202810, l='MpServer', x=19.36, y=63.00, z=135.42], EntityTippedArrow['Arrow'/1263715, l='MpServer', x=-65.51, y=71.99, z=223.84], EntityCow['Cow'/442482, l='MpServer', x=-52.93, y=71.00, z=296.47], MoCEntityAnt['Ant'/995449, l='MpServer', x=43.05, y=78.00, z=177.44], MoCEntityMiniGolem['MiniGolem'/1261156, l='MpServer', x=9.16, y=23.00, z=308.58], EntityCow['Cow'/442494, l='MpServer', x=-49.08, y=71.00, z=297.92], EntityCreeper['Creeper'/1264234, l='MpServer', x=-28.50, y=47.00, z=182.50], MoCEntityWraith['Wraith'/1264277, l='MpServer', x=-127.50, y=42.00, z=328.50], MoCEntityFirefly['Firefly'/173706, l='MpServer', x=-44.51, y=66.00, z=354.55], EntityOtherPlayerMP['BruceVin'/1196158, l='MpServer', x=-87.23, y=63.00, z=445.04], EntitySkeleton['Skeleton'/1264256, l='MpServer', x=-99.50, y=45.00, z=197.50], MoCEntityDragonfly['DragonFly'/1248394, l='MpServer', x=56.56, y=74.00, z=380.61], EntityCow['Cow'/497314, l='MpServer', x=-50.03, y=71.00, z=296.93], MoCEntitySilverSkeleton['SilverSkeleton'/1263284, l='MpServer', x=-20.50, y=21.00, z=243.50], EntityOtherPlayerMP['BruceVin'/1230425, l='MpServer', x=-79.21, y=84.14, z=187.82], EntityOtherPlayerMP['LullabyKitten'/1194146, l='MpServer', x=-52.51, y=70.00, z=262.43], MoCEntityEnt['Ent'/177, l='MpServer', x=-113.30, y=63.00, z=365.80], EntityCow['Cow'/442548, l='MpServer', x=-50.19, y=71.00, z=295.97], MoCEntityMiniGolem['MiniGolem'/1261733, l='MpServer', x=-25.50, y=43.00, z=262.50], EntityItem['item.item.swordWood'/1261737, l='MpServer', x=-72.96, y=70.00, z=302.70], EntityOtherPlayerMP['BruceVin'/1230425, l='MpServer', x=-72.72, y=82.14, z=188.79], EntitySkeleton['Skeleton'/1260767, l='MpServer', x=-86.50, y=48.00, z=212.50], EntitySpider['Spider'/1263326, l='MpServer', x=-84.50, y=49.00, z=213.50], MoCEntityManticorePet['entity.mocreatures.ManticorePet.name'/14543, l='MpServer', x=-32.73, y=72.00, z=304.73], EntitySkeleton['Skeleton'/1261762, l='MpServer', x=-67.45, y=71.00, z=200.29], MoCEntityWerewolf['Werewolf'/1260280, l='MpServer', x=-91.55, y=16.00, z=364.54], EntityCow['Cow'/497395, l='MpServer', x=-50.12, y=71.00, z=291.07], MoCEntityAnt['Ant'/1249003, l='MpServer', x=10.50, y=69.00, z=385.02], EntityOtherPlayerMP['CYBRogue1'/871807, l='MpServer', x=-55.44, y=70.00, z=228.26], EntityCow['Cow'/442636, l='MpServer', x=-49.08, y=71.00, z=291.07], EntityZombie['Zombie'/1263897, l='MpServer', x=-108.50, y=31.00, z=318.50], MoCEntityWWolf['WWolf'/1261314, l='MpServer', x=-45.51, y=72.00, z=208.66], MoCEntityHorseMob['HorseMob'/1256704, l='MpServer', x=-39.70, y=44.23, z=270.30], EntitySkeleton['Skeleton'/1263370, l='MpServer', x=-95.50, y=23.00, z=213.50], EntityCow['Cow'/275226, l='MpServer', x=-51.92, y=71.00, z=296.04], EntityItem['item.tile.dirt.default'/1263923, l='MpServer', x=-40.43, y=72.00, z=242.41], EntityItem['item.tile.dirt.default'/1263922, l='MpServer', x=-37.71, y=72.00, z=243.06], EntityItem['item.item.snowball'/1263920, l='MpServer', x=-41.39, y=74.00, z=240.59], EntityZombie['Zombie'/1262371, l='MpServer', x=-63.50, y=61.00, z=243.78], EntityItem['item.item.snowball'/1263907, l='MpServer', x=-42.19, y=74.00, z=242.43], EntityItem['item.tile.dirt.default'/1263905, l='MpServer', x=-38.69, y=72.00, z=242.78], MoCEntityFly['Fly'/995133, l='MpServer', x=-24.56, y=64.00, z=378.40], EntityItem['item.item.snowball'/1263904, l='MpServer', x=-40.69, y=72.00, z=244.18], EntityItem['item.tile.dirt.default'/1263911, l='MpServer', x=-39.11, y=72.00, z=241.62], EntityItem['item.tile.torch'/1263914, l='MpServer', x=-38.52, y=72.00, z=243.89], MoCEntityAnt['Ant'/996150, l='MpServer', x=65.50, y=97.00, z=181.02], EntityItem['item.tile.dirt.default'/1263913, l='MpServer', x=-39.12, y=73.00, z=245.85], EntityItem['item.tile.dirt.default'/1263912, l='MpServer', x=-38.19, y=72.00, z=242.01], EntityItem['item.item.snowball'/1263919, l='MpServer', x=-38.81, y=74.00, z=240.84], EntityItem['item.tile.dirt.default'/1263918, l='MpServer', x=-39.13, y=71.00, z=243.52], MoCEntityWerewolf['Werewolf'/1263405, l='MpServer', x=34.50, y=61.00, z=358.50], EntityItem['item.tile.dirt.default'/1263917, l='MpServer', x=-38.08, y=73.00, z=244.45], EntityItem['item.tile.dirt.default'/1263916, l='MpServer', x=-41.88, y=73.00, z=243.91], EntitySkeleton['Skeleton'/1262929, l='MpServer', x=-0.50, y=84.00, z=286.50], MoCEntityWerewolf['Werewolf'/1260887, l='MpServer', x=-97.45, y=19.00, z=358.79], EntityColoredItemFrame['Colored Item Frame'/279885, l='MpServer', x=-47.50, y=92.50, z=250.03], MoCEntityWerewolf['Werewolf'/1261400, l='MpServer', x=-44.54, y=73.00, z=218.66], EntityOtherPlayerMP['BruceVin'/1230425, l='MpServer', x=-36.25, y=73.00, z=262.36], EntityZombie['Zombie'/1262430, l='MpServer', x=-53.50, y=21.00, z=252.50], EntityOtherPlayerMP['LullabyKitten'/1194146, l='MpServer', x=-52.20, y=70.00, z=262.18], MoCEntityManticorePet['entity.mocreatures.ManticorePet.name'/1259845, l='MpServer', x=-74.70, y=85.00, z=183.98], EntityCreeper['Creeper'/1261380, l='MpServer', x=-11.52, y=93.00, z=313.30], EntitySkeleton['Skeleton'/1260915, l='MpServer', x=-73.95, y=67.00, z=221.70], EntityOtherPlayerMP['LullabyKitten'/1194146, l='MpServer', x=-52.51, y=70.00, z=262.43], EntityZombie['Zombie'/1263996, l='MpServer', x=31.50, y=45.00, z=205.50], EntityOtherPlayerMP['CYBRogue1'/871807, l='MpServer', x=-84.01, y=71.00, z=291.84], EntityItem['item.tile.cactus'/1261925, l='MpServer', x=-9.94, y=51.00, z=301.32], EntityCow['Cow'/112502, l='MpServer', x=-50.28, y=71.00, z=293.63], EntityCow['Cow'/112507, l='MpServer', x=-50.00, y=71.00, z=292.46], EntityZombie['Zombie'/1261981, l='MpServer', x=-24.70, y=59.00, z=239.55], MoCEntitySilverSkeleton['SilverSkeleton'/1262521, l='MpServer', x=-95.52, y=61.00, z=251.76], MoCEntityFly['Fly'/683430, l='MpServer', x=-62.47, y=72.00, z=152.47], EntitySkeleton['Sk
eleton'/1262527, l='MpServer', x=12.50, y=29.00, z=243.50], EntitySkeleton['Skeleton'/1263548, l='MpServer', x=-111.50, y=45.00, z=204.50], EntityCow['Cow'/497098, l='MpServer', x=-50.96, y=71.00, z=292.26], MoCEntityMiniGolem['MiniGolem'/1261532, l='MpServer', x=-47.62, y=43.00, z=264.28], EntityOtherPlayerMP['CYBRogue1'/871807, l='MpServer', x=-84.01, y=71.00, z=291.84], EntitySkeleton['Skeleton'/1262528, l='MpServer', x=14.50, y=29.00, z=242.50], EntityArmorStand['Armor Stand'/1205701, l='MpServer', x=-57.50, y=90.00, z=250.50], EntityOtherPlayerMP['LullabyKitten'/1194146, l='MpServer', x=-81.16, y=63.00, z=434.24], MoCEntityScorpion['Scorpion'/1264074, l='MpServer', x=-44.50, y=54.00, z=356.50], MoCEntityAnt['Ant'/995823, l='MpServer', x=50.82, y=78.00, z=194.51], EntitySkeleton['Skeleton'/1264127, l='MpServer', x=-107.50, y=59.00, z=271.50], EntityCreeper['Creeper'/1263102, l='MpServer', x=-88.50, y=28.00, z=272.50], EntityXPOrb['Experience Orb'/1263614, l='MpServer', x=-66.19, y=73.00, z=214.89], EntitySkeleton['Skeleton'/1264126, l='MpServer', x=-38.50, y=44.00, z=280.50], EntityCreeper['Creeper'/1263101, l='MpServer', x=-88.50, y=28.00, z=272.50], EntityCreeper['Creeper'/1264125, l='MpServer', x=-40.50, y=44.00, z=280.50], EntityZombie['Zombie'/1249249, l='MpServer', x=-64.80, y=67.00, z=312.51], EntityZombie['Zombie'/1264101, l='MpServer', x=12.50, y=27.00, z=311.50], EntityZombie['Zombie'/1264100, l='MpServer', x=10.50, y=27.00, z=310.50], EntityZombie['Zombie'/1262058, l='MpServer', x=-66.50, y=43.00, z=292.50]] Retry entities: 0 total; [] Server brand: fml,forge Server type: Non-integrated multiplayer serverStacktrace: at net.minecraft.client.multiplayer.WorldClient.func_72914_a(WorldClient.java:529) at net.minecraft.client.Minecraft.func_71396_d(Minecraft.java:2660) at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:392) at net.minecraft.client.main.Main.main(SourceFile:124) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:483) at net.minecraft.launchwrapper.Launch.launch(Launch.java:135) at net.minecraft.launchwrapper.Launch.main(Launch.java:28)
-- System Details --Details: Minecraft Version: 1.10.2 Operating System: Windows 10 (amd64) version 10.0 Java Version: 1.8.0_25, Oracle Corporation Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation Memory: 815875032 bytes (778 MB) / 3019898880 bytes (2880 MB) up to 3221225472 bytes (3072 MB) JVM Flags: 8 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx3G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=16M IntCache: cache: 6, tcache: 0, allocated: 4, tallocated: 105 FML: MCP 9.32 Powered by Forge 12.18.3.2422 Optifine OptiFine_1.10.2_HD_U_E7 23 mods loaded, 23 mods active States: 'U' = Unloaded 'L' = Loaded 'C' = Constructed 'H' = Pre-initialized 'I' = Initialized 'J' = Post-initialized 'A' = Available 'D' = Disabled 'E' = Errored UCHIJA mcp{9.19} [Minecraft Coder Pack] (minecraft.jar) UCHIJA FML{8.0.99.99} [Forge Mod Loader] (forge-1.10.2-12.18.3.2422.jar) UCHIJA Forge{12.18.3.2422} [Minecraft Forge] (forge-1.10.2-12.18.3.2422.jar) UCHIJA mercurius_updater{1.0} [mercurius_updater] (MercuriusUpdater-1.10.2.jar) UCHIJA arsmagica2{1.5.017} [Ars Magica 2] (ArsMagica2-1.10.2-1.5.0-17b.jar) UCHIJA AnimationAPI{1.2.4} [AnimationAPI] (ArsMagica2-1.10.2-1.5.0-17b.jar) UCHIJA Quark{r1.1-70} [Quark] (Quark-r1.1-70.jar) UCHIJA AutoRegLib{1.0-2} [AutoRegLib] (AutoRegLib-1.0-2.jar) UCHIJA backpacks16840{backpacks16840} [Backpacks!] (backpacks+1.10.2+-+3.4.0.jar) UCHIJA BiomesOPlenty{5.0.0.2290} [Biomes O' Plenty] (BiomesOPlenty-1.10.2-5.0.0.2290-universal.jar) UCHIJA one_point_twelve_concrete{v 1.0} [1.12 Concrete] (Concrete-Mod-1.10.2.jar) UCHIJA PTRModelLib{1.0.0} [PTRModelLib] (Decocraft-2.3.6.1_1.10.2.jar) UCHIJA props{2.3.6.1} [Decocraft] (Decocraft-2.3.6.1_1.10.2.jar) UCHIJA mocreatures{10.0.6} [DrZhark's Mo'Creatures Mod] (DrZhark's Mo'Creatures Mod-10.0.6.jar) UCHIJA elevatorid{1.2.0} [Elevator Mod] (ElevatorMod[V.1.2.0][MC.1.10.2].jar) UCHIJA JEI{3.14.7.420} [Just Enough Items] (jei_1.10.2-3.14.7.420.jar) UCHIJA forestry{5.2.17.384} [Forestry] (forestry_1.10.2-5.2.17.384.jar) UCHIJA gravestone{1.5.13} [Gravestone Mod] (gravestone-1.5.13.jar) UCHIJA mantle{1.10.2-1.1.5.205} [Mantle] (Mantle-1.10.2-1.1.5.jar) UCHIJA mopickaxes{8.1} [Mo' Pickaxes] (Mo-Pickaxes-Mod-1.10.2.jar) UCHIJA roguelike{1.5.7} [Roguelike Dungeons] (RoguelikeDungeons-1.10.2-1.5.7.jar) UCHIJA ultimate_unicorn_mod{1.5.5} [Wings, Horns, and Hooves, the Ultimate Unicorn Mod!] (Ultimate-Unicorn-Mod-1.10.2.jar) UCHIJA XaeroMinimap{1.14.4} [Xaero's Minimap] (Xaeros_Minimap_1.14.4_Forge_1.10.2.jar) Loaded coremods (and transformers): LoadingPlugin (Quark-r1.1-70.jar) vazkii.quark.base.asm.ClassTransformerBCModPlugin (backpacks+1.10.2+-+3.4.0.jar) brad16840.core.ClassTransformerArsMagica2-Preloader (ArsMagica2-1.10.2-1.5.0-17b.jar) am2.asm.Transformer GL info: ' Vendor: 'NVIDIA Corporation' Version: '4.6.0 NVIDIA 390.77' Renderer: 'GeForce GTX 760/PCIe/SSE2' Launched Version: 1.10.2-forge1.10.2-12.18.3.2422 LWJGL: 2.9.4 OpenGL

java.lang.ClassCastException: java.lang.Boolean cannot be cast to java.lang.String at
drzhark.mocreatures.entity.MoCEntityAquatic.getPetName(MoCEntityAquatic.java:151) at drzhark.mocreatures.client.renderer.entity.MoCRenderDolphin.doRender(MoCRenderDolphin.java:26) at drzhark.mocreatures.client.renderer.entity.MoCRenderDolphin.func_76986_a(MoCRenderDolphin.java:16) at
Exact location: -104.50, 63.00, 263.50

the dolphin of the mocreatures mod seems badly coded

remove the mod, if you can't i will try to tweak it around

Can i just go into the config folder and remove dolphins from spawning? or will that not solve it

try it, or just try redownloading it because it seems to have a little bug