Editor crash after upgrade from 3.3.5 to 3.3.13

[Carlos]

I suggest you re-upload GS overwriting all files, just in case. You just need to upload index.php and admin/* (making sure you overwrite all files)

BTW you don't need to create your pages again if you do a clean install - you can make a backup of xml files in data/pages, then re-upload those files after installing.