Server Shutdown

[TheGraphix]

My server was running fine last night, but I came back to find out I'm getting this. Could it be world corruption?
http://pastebin.com/Y8NNEjg7

 

[seriousvern]

if you are using worldedit you can run the command /stoplag as the server is starting up to kill all mobs and item drops. the cords to the bad slime are 5671 29 806 with stoplag on tp there. After its removed use /stoplag -c to allow mobs to spawn and items to drop. The /cofh killall may work as well