Should be fixed on your site now. Please let me know if it still gives you any issues though.
For anyone else that's having this problem, please look in your forum/includes/functions_gallery_imageedit.php file for this code:
Code:
Content visible to verified customers only.
Remove that, then look just below that line for this bit of code:
Code:
Content visible to verified customers only.
And add this right above it:
Code:
Content visible to verified customers only.