When an LUA, taint, or XML error occurs, the mod makes a sound, and info on the error can be gotten by clicking the button that will appear near the minimap. If you want the button to appear in a different place, drag it while holding the shift key.
Fix frame error for WotLK
A fan update, thanks for Baudzilla for his previous work, will abandon if he updated himself.
I don't know what this update was supposed to fix but it is still impossible to scroll the list if there are more than 8 errors nor it is possible to change error sound