help errors spam server crash

hello i have a server running and sometimes it gives an error like this

Code:

22:52:09 [SEVERE] Chunk (-34, -58) stored at  (-35, -38) in world 'world'
22:52:09 [SEVERE] net.minecraft.server.Chunk
22:52:09 [SEVERE] java.lang.Throwable
22:52:09 [SEVERE]       at net.minecraft.server.ChunkProviderServer.getOrCreateC hunk(ChunkProviderServer.java:112)
22:52:09 [SEVERE]       at net.minecraft.server.Chunk.a(Chunk.java:825)
22:52:09 [SEVERE]       at net.minecraft.server.ChunkProviderServer.getChunkAt(C hunkProviderServer.java:96)
22:52:09 [SEVERE]       at net.minecraft.server.PlayerInstance.<init>(PlayerInst ance.java:31)
22:52:09 [SEVERE]       at net.minecraft.server.PlayerManager.a(PlayerManager.ja va:45)
22:52:09 [SEVERE]       at net.minecraft.server.PlayerManager.addPlayer(PlayerMa nager.java:84)
22:52:09 [SEVERE]       at net.minecraft.server.ServerConfigurationManager.c(Ser verConfigurationManager.java:139)
22:52:09 [SEVERE]       at net.minecraft.server.NetLoginHandler.b(NetLoginHandle r.java:121)
22:52:09 [SEVERE]       at net.minecraft.server.NetLoginHandler.a(NetLoginHandle r.java:39)
22:52:09 [SEVERE]       at net.minecraft.server.NetworkListenThread.a(SourceFile :94)
22:52:09 [SEVERE]       at net.minecraft.server.MinecraftServer.h(MinecraftServe r.java:471)
22:52:09 [SEVERE]       at net.minecraft.server.MinecraftServer.run(MinecraftSer ver.java:374)
22:52:09 [SEVERE]       at net.minecraft.server.ThreadServerApplication.run(Sour ceFile:417)

and the server just crashed and Spam this
what do i need to do to fix this

 

Try running Chunkster, that tends to fix a number of chunk related problems. If it doesn't work, get back to us. =)

 

ty it worked