Visual Composer wont save updates.

Hi, I have an issue on one of my websites. I cannot save any changes made from Visual composer, whenever I press "update" it doesnt make my changes, it worked like 2 weeks ago. I had some updates to both the theme itself and Visual composer and I updated them without any trouble but the problem still exists.

I have disabled all 3rd party plugins to check for a conflict, but no. I noticed that I could only make changes if I disabled Visual composer and wrote directly into the page. (at this point, I had 0 plugins active)

Please help.