Almost every time when I try to create/update page, post, guide, tour, etc., I have this problem:
- if more than one field id modified/edited, I am redirected to public 404 Error page.
- if only ine field is updated, no problem.
- if i try to update Them Options, and I modify more than one option, I receive popup error "There was a problem with your action. Please try again or reload the page"
What can be the cause?