WPBakery Page Builder version 6.1 does not save changes, where to dig?

Question

WordPress

Good time of the day!
Help, I've been struggling for 4 days and I can't figure out where to dig.
Bought the theme and plugin. Everything has been updated to the latest version.
The WPBakery Page Builder plugin does not work, does not save changes.

Answer 1

Friend! The same trouble, there was no time to look for a solution, therefore, through the task inspector, I simply removed the disabled button from the button and everything was saved.