Save Changes doesn’t work

Hello,

Maybe I wrote the same question wrong in the other topic.
In any case, I will once again explain the problem that happened to me as soon as I updated CFF to version 5.2.0.

After making changes in a form, I saved and received this alert:

“The data cannot be stored in database because an error has occurred with the database structure. Please, go to the plugins section and Deactivate/Activate the plugin to be sure the structure of database has been checked, and corrected if needed. If the issue persist, please contact us.”

I did as instructed, but the problem persists. What should I do?
I would like to point out that I am using WordPress version 6.5.2, and CFF Version 5.2.0 (just updated).

Thanks in advance

The page I need help with: [log in to see the link]