Game Crash

[Doom88]

Whenever I open the Professions window or the Auction House in-game, WoW crashes and I get the following error message:

"Your game interface files are corrupt. Please remove your InterfaceFrameXML folder."

Has anyone experienced this before? I really need a solution. Any help would be greatly appreciated!

[Furaaxx]

I have the same problem.
I tried with fresh install but i get the same error when i tried to open class trainer panel

[Drzirk]

I have the same problem.
Reinstalling etc. doesn't help.

[Unigo]

Same here. Tried everything i could find, still nothing...