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here is the crash report

---- Minecraft Crash Report ----
// Sorry

Time: 8/31/16 8:31 PM
Description: Ticking player

java.lang.NullPointerException: Ticking player
at net.minecraft.world.World.func_180495_p(World.java:828)
at net.minecraft.world.World.func_72875_a(World.java:2213)
at net.minecraft.entity.Entity.func_180799_ab(Entity.java:1161)
at net.minecraft.entity.Entity.func_70030_z(Entity.java:457)
at net.minecraft.entity.EntityLivingBase.func_70030_z(EntityLivingBase.java:212)
at net.minecraft.entity.Entity.func_70071_h_(Entity.java:351)
at net.minecraft.entity.EntityLivingBase.func_70071_h_(EntityLivingBase.java:1880)
at net.minecraft.entity.player.EntityPlayer.func_70071_h_(EntityPlayer.java:226)
at net.minecraft.entity.player.EntityPlayerMP.func_71127_g(EntityPlayerMP.java:301)
at net.minecraft.network.NetHandlerPlayServer.func_73660_a(NetHandlerPlayServer.java:163)
at net.minecraftforge.fml.common.network.handshake.NetworkDispatcher$1.func_73660_a(NetworkDispatcher.java:193)
at net.minecraft.network.NetworkManager.func_74428_b(NetworkManager.java:286)
at net.minecraft.network.NetworkSystem.func_151269_c(NetworkSystem.java:180)
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:728)
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:609)
at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:148)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:467)
at java.lang.Thread.run(Thread.java:745)

A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- Head --
Stacktrace:
at net.minecraft.world.World.func_180495_p(World.java:828)
at net.minecraft.world.World.func_72875_a(World.java:2213)
at net.minecraft.entity.Entity.func_180799_ab(Entity.java:1161)
at net.minecraft.entity.Entity.func_70030_z(Entity.java:457)
at net.minecraft.entity.EntityLivingBase.func_70030_z(EntityLivingBase.java:212)
at net.minecraft.entity.Entity.func_70071_h_(Entity.java:351)
at net.minecraft.entity.EntityLivingBase.func_70071_h_(EntityLivingBase.java:1880)
at net.minecraft.entity.player.EntityPlayer.func_70071_h_(EntityPlayer.java:226)

-- Player being ticked --
Details:
Entity Type: null (net.minecraft.entity.player.EntityPlayerMP)
Entity ID: 321
Entity Name: thedoctor_rules
Entity's Exact location: 16.19, 14.00, 54.69
Entity's Block location: World: (16,14,54), Chunk: (at 0,0,6 in 1,3; contains blocks 16,0,48 to 31,255,63), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
Entity's Momentum: 0.00, -0.08, 0.00
Entity's Passengers: []
Entity's Vehicle: ~~ERROR~~ NullPointerException: null
Stacktrace:
at net.minecraft.entity.player.EntityPlayerMP.func_71127_g(EntityPlayerMP.java:301)
at net.minecraft.network.NetHandlerPlayServer.func_73660_a(NetHandlerPlayServer.java:163)
at net.minecraftforge.fml.common.network.handshake.NetworkDispatcher$1.func_73660_a(NetworkDispatcher.java:193)
at net.minecraft.network.NetworkManager.func_74428_b(NetworkManager.java:286)

-- Ticking connection --
Details:
Connection: [email protected]
Stacktrace:
at net.minecraft.network.NetworkSystem.func_151269_c(NetworkSystem.java:180)
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:728)
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:609)
at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:148)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:467)
at java.lang.Thread.run(Thread.java:745)

-- System Details --
Details:
Minecraft Version: 1.9
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: 387587032 bytes (369 MB) / 858128384 bytes (818 MB) up to 1060372480 bytes (1011 MB)
JVM Flags: 6 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1G -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M
IntCache: cache: 0, tcache: 0, allocated: 12, tallocated: 94
FML: MCP 9.23 Powered by Forge 12.16.1.1887 9 mods loaded, 9 mods active
States: 'U' = Unloaded 'L' = Loaded 'C' = Constructed 'H' = Pre-initialized 'I' = Initialized 'J' = Post-initialized 'A' = Available 'D' = Disabled 'E' = Errored
UCHIJAAAA mcp{9.19} [Minecraft Coder Pack] (minecraft.jar)
UCHIJAAAA FML{8.0.99.99} [Forge Mod Loader] (forge-1.9-12.16.1.1887.jar)
UCHIJAAAA Forge{12.16.1.1887} [Minecraft Forge] (forge-1.9-12.16.1.1887.jar)
UCHIJAAAA grapplemod{1.9.4-v6} [Grappling hook mod] (Grappling-Hook-Mod-1.9.jar)
UCHIJAAAA mantle{1.9-0.9.4.jenkins114} [Mantle] (Mantle-1.9-0.9.4.jar)
UCHIJAAAA flammpfeil.slashblade{mc1.9-r8} [SlashBlade] (SlashBlade-mc1.9-r8.jar)
UCHIJAAAA tconstruct{1.9-2.2.2.jenkins156} [Tinkers' Construct] (TConstruct-1.9-2.2.2.jar)
UCHIJAAAA VeinMiner{0.34.0_1.9-58ffb13} [Vein Miner] (VeinMiner-0.34.0-1.9r565+58ffb13.jar)
UCHIJAAAA VeinMinerModSupport{0.34.0_1.9-58ffb13} [Mod Support] (VeinMiner-0.34.0-1.9r565+58ffb13.jar)
Loaded coremods (and transformers):
GL info: ~~ERROR~~ RuntimeException: No OpenGL context found in the current thread.
Pulsar/tconstruct loaded Pulses:
- TinkerCommons (Enabled/Forced)
- TinkerWorld (Enabled/Not Forced)
- TinkerTools (Enabled/Not Forced)
- TinkerSmeltery (Enabled/Not Forced)
- TinkerGadgets (Enabled/Not Forced)
- TinkerOredict (Enabled/Forced)
- TinkerIntegration (Enabled/Forced)
- TinkerFluids (Enabled/Forced)
- TinkerMaterials (Enabled/Forced)

Profiler Position: N/A (disabled)
Player Count: 1 / 8; [EntityPlayerMP['thedoctor_rules'/321, l='surival', x=16.19, y=14.00, z=54.69]]
Type: Integrated Server (map_client.txt)
Is Modded: Definitely; Client brand changed to 'fml,forge'