net.minecraft.server.v1_11_R1.ReportedException: Ticking block entity
09.12 20:06:24 [Server] INFO at net.minecraft.server.v1_11_R1.MinecraftServer.D(MinecraftServer.java:817) ~[spigot-1.11.jar:git-Spigot-16c940b-0805f60]
09.12 20:06:24 [Server] INFO at net.minecraft.server.v1_11_R1.DedicatedServer.D(DedicatedServer.java:399) ~[spigot-1.11.jar:git-Spigot-16c940b-0805f60]
09.12 20:06:24 [Server] INFO at net.minecraft.server.v1_11_R1.MinecraftServer.C(MinecraftServer.java:675) ~[spigot-1.11.jar:git-Spigot-16c940b-0805f60]
09.12 20:06:24 [Server] INFO at net.minecraft.server.v1_11_R1.MinecraftServer.run(MinecraftServer.java:574) [spigot-1.11.jar:git-Spigot-16c940b-0805f60]
09.12 20:06:24 [Server] INFO at java.lang.Thread.run(Unknown Source) [?:1.8.0_25]
09.12 20:06:24 [Server] INFO Caused by: java.lang.ClassCastException: net.minecraft.server.v1_11_R1.TileEntityFurnace cannot be cast to net.minecraft.server.v1_11_R1.TileEntityLootable
09.12 20:06:24 [Server] INFO at org.bukkit.craftbukkit.v1_11_R1.block.CraftLootable.<init>(CraftLootable.java:17) ~[spigot-1.11.jar:git-Spigot-16c940b-0805f60]
09.12 20:06:24 [Server] INFO at org.bukkit.craftbukkit.v1_11_R1.block.CraftFurnace.<init>(CraftFurnace.java:15) ~[spigot-1.11.jar:git-Spigot-16c940b-0805f60]
09.12 20:06:24 [Server] INFO at org.bukkit.craftbukkit.v1_11_R1.block.CraftBlock.getState(CraftBlock.java:276) ~[spigot-1.11.jar:git-Spigot-16c940b-0805f60]
09.12 20:06:24 [Server] INFO at net.minecraft.server.v1_11_R1.TileEntity.getOwner(TileEntity.java:273) ~[spigot-1.11.jar:git-Spigot-16c940b-0805f60]
09.12 20:06:24 [Server] INFO at net.minecraft.server.v1_11_R1.TileEntityHopper.s(TileEntityHopper.java:209) ~[spigot-1.11.jar:git-Spigot-16c940b-0805f60]
09.12 20:06:24 [Server] INFO at net.minecraft.server.v1_11_R1.TileEntityHopper.o(TileEntityHopper.java:130) ~[spigot-1.11.jar:git-Spigot-16c940b-0805f60]
09.12 20:06:24 [Server] INFO at net.minecraft.server.v1_11_R1.TileEntityHopper.F_(TileEntityHopper.java:118) ~[spigot-1.11.jar:git-Spigot-16c940b-0805f60]
09.12 20:06:24 [Server] INFO at net.minecraft.server.v1_11_R1.World.tickEntities(World.java:1519) ~[spigot-1.11.jar:git-Spigot-16c940b-0805f60]
09.12 20:06:24 [Server] INFO at net.minecraft.server.v1_11_R1.WorldServer.tickEntities(WorldServer.java:635) ~[spigot-1.11.jar:git-Spigot-16c940b-0805f60]
09.12 20:06:24 [Server] INFO at net.minecraft.server.v1_11_R1.MinecraftServer.D(MinecraftServer.java:806) ~[spigot-1.11.jar:git-Spigot-16c940b-0805f60]
09.12 20:06:24 [Server] INFO ... 4 more
09.12 20:06:24 [Server] ERROR Cause of unexpected exception was
09.12 20:06:24 [Server] INFO java.lang.ClassCastException: net.minecraft.server.v1_11_R1.TileEntityFurnace cannot be cast to net.minecraft.server.v1_11_R1.TileEntityLootable
09.12 20:06:24 [Server] INFO at org.bukkit.craftbukkit.v1_11_R1.block.CraftLootable.<init>(CraftLootable.java:17) ~[spigot-1.11.jar:git-Spigot-16c940b-0805f60]
09.12 20:06:24 [Server] INFO at org.bukkit.craftbukkit.v1_11_R1.block.CraftFurnace.<init>(CraftFurnace.java:15) ~[spigot-1.11.jar:git-Spigot-16c940b-0805f60]