Unknown Error

[KillingSpree]

When I was playing using carbonite I noticed whenever I went into battle it said some error upon removing carbonite it didn't say it.

http://www.youtube.com/watch?v=58tC909wFjE
Video of it

[carboniteaddon]

You need to enable "Display Lua Errors" in the Help section of the game Interface panel or use an error showing addon like Swatter.

I need the error message showing the line of code that caused the error.

[KillingSpree]

I recently enabled a few addons to change my hud(bartender 4, buttonfacade, others) and it no longer appears.