[22:17:00] [Server thread/ERROR]: Encountered an unexpected exception
net.minecraft.server.v1_7_R4.ReportedException: Ticking block entity
	at net.minecraft.server.v1_7_R4.MinecraftServer.v(MinecraftServer.java:717) ~[PaperSpigot.jar:git-Spigot-1.7.9-R0.2-208-ge0f2e95]
	at net.minecraft.server.v1_7_R4.DedicatedServer.v(DedicatedServer.java:289) ~[PaperSpigot.jar:git-Spigot-1.7.9-R0.2-208-ge0f2e95]
	at net.minecraft.server.v1_7_R4.MinecraftServer.u(MinecraftServer.java:584) ~[PaperSpigot.jar:git-Spigot-1.7.9-R0.2-208-ge0f2e95]
	at net.minecraft.server.v1_7_R4.MinecraftServer.run(MinecraftServer.java:490) [PaperSpigot.jar:git-Spigot-1.7.9-R0.2-208-ge0f2e95]
	at net.minecraft.server.v1_7_R4.ThreadServerApplication.run(SourceFile:628) [PaperSpigot.jar:git-Spigot-1.7.9-R0.2-208-ge0f2e95]
Caused by: java.lang.NullPointerException
	at net.minecraft.server.v1_7_R4.TileEntityHopper.addEntityItem(TileEntityHopper.java:503) ~[PaperSpigot.jar:git-Spigot-1.7.9-R0.2-208-ge0f2e95]
	at net.minecraft.server.v1_7_R4.TileEntityHopper.suckInItems(TileEntityHopper.java:438) ~[PaperSpigot.jar:git-Spigot-1.7.9-R0.2-208-ge0f2e95]
	at net.minecraft.server.v1_7_R4.TileEntityHopper.i(TileEntityHopper.java:251) ~[PaperSpigot.jar:git-Spigot-1.7.9-R0.2-208-ge0f2e95]
	at net.minecraft.server.v1_7_R4.TileEntityHopper.h(TileEntityHopper.java:234) ~[PaperSpigot.jar:git-Spigot-1.7.9-R0.2-208-ge0f2e95]
	at net.minecraft.server.v1_7_R4.World.tickEntities(World.java:1516) ~[PaperSpigot.jar:git-Spigot-1.7.9-R0.2-208-ge0f2e95]
	at net.minecraft.server.v1_7_R4.WorldServer.tickEntities(WorldServer.java:516) ~[PaperSpigot.jar:git-Spigot-1.7.9-R0.2-208-ge0f2e95]
	at net.minecraft.server.v1_7_R4.MinecraftServer.v(MinecraftServer.java:706) ~[PaperSpigot.jar:git-Spigot-1.7.9-R0.2-208-ge0f2e95]
	... 4 more
[22:17:00] [Server thread/ERROR]: 	Cause of unexpected exception was
java.lang.NullPointerException
	at net.minecraft.server.v1_7_R4.TileEntityHopper.addEntityItem(TileEntityHopper.java:503) ~[PaperSpigot.jar:git-Spigot-1.7.9-R0.2-208-ge0f2e95]
	at net.minecraft.server.v1_7_R4.TileEntityHopper.suckInItems(TileEntityHopper.java:438) ~[PaperSpigot.jar:git-Spigot-1.7.9-R0.2-208-ge0f2e95]
	at net.minecraft.server.v1_7_R4.TileEntityHopper.i(TileEntityHopper.java:251) ~[PaperSpigot.jar:git-Spigot-1.7.9-R0.2-208-ge0f2e95]
	at net.minecraft.server.v1_7_R4.TileEntityHopper.h(TileEntityHopper.java:234) ~[PaperSpigot.jar:git-Spigot-1.7.9-R0.2-208-ge0f2e95]
	at net.minecraft.server.v1_7_R4.World.tickEntities(World.java:1516) ~[PaperSpigot.jar:git-Spigot-1.7.9-R0.2-208-ge0f2e95]
	at net.minecraft.server.v1_7_R4.WorldServer.tickEntities(WorldServer.java:516) ~[PaperSpigot.jar:git-Spigot-1.7.9-R0.2-208-ge0f2e95]
	at net.minecraft.server.v1_7_R4.MinecraftServer.v(MinecraftServer.java:706) ~[PaperSpigot.jar:git-Spigot-1.7.9-R0.2-208-ge0f2e95]
	at net.minecraft.server.v1_7_R4.DedicatedServer.v(DedicatedServer.java:289) ~[PaperSpigot.jar:git-Spigot-1.7.9-R0.2-208-ge0f2e95]
	at net.minecraft.server.v1_7_R4.MinecraftServer.u(MinecraftServer.java:584) ~[PaperSpigot.jar:git-Spigot-1.7.9-R0.2-208-ge0f2e95]
	at net.minecraft.server.v1_7_R4.MinecraftServer.run(MinecraftServer.java:490) [PaperSpigot.jar:git-Spigot-1.7.9-R0.2-208-ge0f2e95]
	at net.minecraft.server.v1_7_R4.ThreadServerApplication.run(SourceFile:628) [PaperSpigot.jar:git-Spigot-1.7.9-R0.2-208-ge0f2e95]
[22:17:00] [Server thread/ERROR]: This crash report has been saved to: /home/Fazioni-Nik/./crash-reports/crash-2017-06-07_22.17.00-server.txt