Problem/Bug CraftBukkit Scoreboard on the right side of the screen

Hi.

I recently realized that there is a scoreboard right side of my screen called CraftBukkit. I have no idea how to remove that. Does anyone know how to remove that?

Screenshot:

 

What plugins do you use on your server. You need to provide information with your post or else we cannot help you.

 

My plugins:

PEX, Essentials, mcmmo, MV, MVP, Votifer, Glog, Towny, Slimefun, Hub.
Im pretty sure that I misspelled some command and it appeared.

 

- Not votifier
- Not MV
- Not PEX
- Not Essentials
- not MVP
- not mcmmo
- not glog
- It seems to be either slimefun or hub. My guess is hub, though.

 

Yeah. At the time i was setting up hub command and stuff. Should I reinstall Hub plugin or something? Would it help?

I uninstalled HUB plugin and the scoreboard is gone. Thanks.

EDIT by Moderator: merged posts, please use the edit button instead of double posting.