Hi Nino,
Do you remember what search word you were using, that caused the error? If not, next time it happens, can you let me know which word? Thanks
Edit: Also, the more specific you can be about this, the more it'll help me... Does the error come up immediately after you hit "search"? Or is it after you click through some result pages? Or does it come up when you click on a specific result thread/post? Thanks!!!