Can anyone help me to fix the mfa saving problem? It get annoying

Sometimes when I want to test or save my mfa...IT JUST WONT AND SHOW AN ERROR MESSAGE SIMILAR TO THISD:<: https://gyazo.com/3b03694c1d0ada77a65954d614f23c27
I tried many times to uninstall and reinstall Clickteam Fusion 2.5 but nothing:(!
So I wonder if someone could help me to fix it, I don't want to make backup every seconds!
(for information, I have the last build of clickteam fusion 2.5 non-developper version and installed these extensions: Ultimate fullscreen, Easing Objetc and Joypad)
Sorry for my bad english

Thanks anyway!

Do you know if you have an auto-cleaner program that cleans the Windows temp directory running in the backgroung? I think this kind of program can remove important temporary files used by Fusion.

Another reason might be that your system drive (where is the Windows temp folder) is running out of space. Not sure but maybe worth checking.