Can't save changes

Hello, I have a problem with saving changes in Balbooa.

A window does not appear to tell me that the changes have been saved. If I make changes to the content on one page then when I click "save" no saving information appears. When I refresh the editor, sometimes the changes will be saved, sometimes not.

I also can't save changes to the page settings, such as disabling cache or enabling responsiveness. The settings change, I can close the settings window, but when I click "save" nothing happens and when I refresh the page the changes are not remembered.

I tried on different browsers and it didn't change anything.

I will send the access data separately.