8:27:31 AM CONSOLE: [SEVERE] net.minecraft.server.v1_6_R2.ReportedException: Ticking tile entity
8:27:31 AM CONSOLE: [SEVERE] at net.minecraft.server.v1_6_R2.MinecraftServer.t(MinecraftServer.java:575)
8:27:31 AM CONSOLE: [SEVERE] at net.minecraft.server.v1_6_R2.DedicatedServer.t(DedicatedServer.java:239)
8:27:31 AM CONSOLE: [SEVERE] at net.minecraft.server.v1_6_R2.MinecraftServer.s(MinecraftServer.java:481)
8:27:31 AM CONSOLE: [SEVERE] at net.minecraft.server.v1_6_R2.MinecraftServer.run(MinecraftServer.java:413)
8:27:31 AM CONSOLE: [SEVERE] at net.minecraft.server.v1_6_R2.ThreadServerApplication.run(SourceFile:582)
8:27:31 AM CONSOLE: [SEVERE] Caused by: java.lang.NullPointerException
8:27:31 AM CONSOLE: [SEVERE] at net.minecraft.server.v1_6_R2.TileEntity.getOwner(TileEntity.java:175)
8:27:31 AM CONSOLE: [SEVERE] at net.minecraft.server.v1_6_R2.TileEntityHopper.u(TileEntityHopper.java:217)
8:27:31 AM CONSOLE: [SEVERE] at net.minecraft.server.v1_6_R2.TileEntityHopper.j(TileEntityHopper.java:181)
8:27:31 AM CONSOLE: [SEVERE] at net.minecraft.server.v1_6_R2.TileEntityHopper.h(TileEntityHopper.java:173)
8:27:31 AM CONSOLE: [SEVERE] at net.minecraft.server.v1_6_R2.World.tickEntities(World.java:1367)
8:27:31 AM CONSOLE: [SEVERE] at net.minecraft.server.v1_6_R2.WorldServer.tickEntities(WorldServer.java:517)
8:27:31 AM CONSOLE: [SEVERE] at net.minecraft.server.v1_6_R2.MinecraftServer.t(MinecraftServer.java:571)
8:27:31 AM CONSOLE: [SEVERE] ... 4 more
8:27:31 AM CONSOLE: [SEVERE] Encountered an unexpected exception ReportedException
8:27:31 AM CONSOLE: tile entity