Anyone with experience with AGS has a fix for this error?
 

No valid thumbnails could be found on the gallery. Make sure all thumbnails link directly to the full size image or movie.

I have 2 copies of AGS v 3.0.3
Same server Same settings Same paths
Checked in detail
One of them works fine
The other doesnt crop a single thumb
Tested with the same galleries.
No html links or weird stuff.

Any clue?