I have a big problem with the WPML String Translation. First it started with losing all String Translations. Unfortunately I can't really reproduce what caused this. Maybe because I had to restore a backup via ManageWP, maybe because of a WPML update... I tried to reproduce it with a older (manual) backup of the site, but nothing...
Really strange but anyway, I just need to fix this mess. But the big problem is, I now can't even manually save a string in the String Translation. Not for the Widgets and not for the Gravity Forms. I have no idea why.
I even tried and created a new Widget. The string then appears in String Translation, but still, I can't save any translation.
I have created a copy of the site where you can debug the problem.