Help with server

[DiddlyDoo802]

Does anyone know what could be the cause of this repeating in the console?

http://pastebin.com/eRDgXBF6

[plowmanplow]

Without a lot of additional information (which modpack is this server for, what Java version, memory, etc.) it will be impossible to say. If everything else is fine though that might just be a debug message from a mod and can probably be safely ignored.