I haven't been able to access my server since about a month! please help! Nobody will tell me why this is happening. If u need any other info, ask. me Code: [16:34:59 INFO]: S_L lost connection: Server closed [16:34:59 ERROR]: Exception stopping the server java.lang.IllegalStateException: Unknown org.bukkit.craftbukkit.v1_7_R4.chunkio.QueuedChunk@8cf61f06 at org.bukkit.craftbukkit.v1_7_R4.util.AsynchronousExecutor.drop(AsynchronousExecutor.java:266) ~[craftbukkit.jar:git-Spigot-1.7.9-R0.2-207-g03373bb] at org.bukkit.craftbukkit.v1_7_R4.chunkio.ChunkIOExecutor.dropQueuedChunkLoad(ChunkIOExecutor.java:25) ~[craftbukkit.jar:git-Spigot-1.7.9-R0.2-207-g03373bb] at net.minecraft.server.v1_7_R4.PlayerChunk.b(PlayerChunk.java:70) ~[craftbukkit.jar:git-Spigot-1.7.9-R0.2-207-g03373bb] at net.minecraft.server.v1_7_R4.PlayerChunkMap.removePlayer(PlayerChunkMap.java:196) ~[craftbukkit.jar:git-Spigot-1.7.9-R0.2-207-g03373bb] at net.minecraft.server.v1_7_R4.PlayerList.disconnect(PlayerList.java:347) ~[craftbukkit.jar:git-Spigot-1.7.9-R0.2-207-g03373bb] at net.minecraft.server.v1_7_R4.PlayerConnection.a(PlayerConnection.java:738) ~[craftbukkit.jar:git-Spigot-1.7.9-R0.2-207-g03373bb] at net.minecraft.server.v1_7_R4.PlayerConnection.disconnect(PlayerConnection.java:176) ~[craftbukkit.jar:git-Spigot-1.7.9-R0.2-207-g03373bb] at net.minecraft.server.v1_7_R4.PlayerList.u(PlayerList.java:1216) ~[craftbukkit.jar:git-Spigot-1.7.9-R0.2-207-g03373bb] at net.minecraft.server.v1_7_R4.MinecraftServer.stop(MinecraftServer.java:404) ~[craftbukkit.jar:git-Spigot-1.7.9-R0.2-207-g03373bb] at net.minecraft.server.v1_7_R4.MinecraftServer.run(MinecraftServer.java:525) [craftbukkit.jar:git-Spigot-1.7.9-R0.2-207-g03373bb] at net.minecraft.server.v1_7_R4.ThreadServerApplication.run(SourceFile:628) [craftbukkit.jar:git-Spigot-1.7.9-R0.2-207-g03373bb] [16:34:59 INFO]: Stopping server [16:34:59 INFO]: Saving players >logout [Process completed]