Errors when updating tours and theme options

Hi,

since last theme and plugins updates I have some issues:

– TOURS: wordpress nor WPBakery Visual Composer are able to update tour posts. Click on WP post update blue button makes nothing. Click on Visual Composer update button gets stuck loading.

– THEME OPTIONS: When trying to update after some modifications (on custom css for instance) an error message appears. Something like: “There was an error with your action. Try again or reload the page.”

Could you help me find the problem?

Thanks