---- Minecraft Crash Report ----
// Who set us up the TNT?

Time: 26.07.17 08:54
Description: Ticking entity

java.lang.NullPointerException: Ticking entity
	at net.minecraft.server.v1_7_R4.Entity.move(Entity.java:511)
	at net.minecraft.server.v1_7_R4.EntityMinecartAbstract.b(EntityMinecartAbstract.java:396)
	at net.minecraft.server.v1_7_R4.EntityMinecartAbstract.h(EntityMinecartAbstract.java:289)
	at net.minecraft.server.v1_7_R4.World.entityJoinedWorld(World.java:1620)
	at net.minecraft.server.v1_7_R4.World.playerJoinedWorld(World.java:1595)
	at net.minecraft.server.v1_7_R4.World.tickEntities(World.java:1460)
	at net.minecraft.server.v1_7_R4.WorldServer.tickEntities(WorldServer.java:516)
	at net.minecraft.server.v1_7_R4.MinecraftServer.v(MinecraftServer.java:706)
	at net.minecraft.server.v1_7_R4.DedicatedServer.v(DedicatedServer.java:289)
	at net.minecraft.server.v1_7_R4.MinecraftServer.u(MinecraftServer.java:584)
	at net.minecraft.server.v1_7_R4.MinecraftServer.run(MinecraftServer.java:490)
	at net.minecraft.server.v1_7_R4.ThreadServerApplication.run(SourceFile:628)


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

-- Head --
Stacktrace:
	at net.minecraft.server.v1_7_R4.Entity.move(Entity.java:511)
	at net.minecraft.server.v1_7_R4.EntityMinecartAbstract.b(EntityMinecartAbstract.java:396)
	at net.minecraft.server.v1_7_R4.EntityMinecartAbstract.h(EntityMinecartAbstract.java:289)
	at net.minecraft.server.v1_7_R4.World.entityJoinedWorld(World.java:1620)
	at net.minecraft.server.v1_7_R4.World.playerJoinedWorld(World.java:1595)