Hello @abdulazizsobh
Indeed, that is the old editor which is sadly, not supported under Blocksy. The classic editor is legacy technology which is slowly phased out and integrating legacy code into our product is a no go.
My recommendation would be to switch to a more widely supported and most importantly, modern editor, such as Gutenberg or Elementor. These have full support from the WordPress community.
Also, it would be recommended to provide the full story of a problem whenever you have trouble, as it is really hard to guess what’s happening with all the missing information and cropped screenshots taken out of context. We’re trying to help as much as possible, but it is very hard when we don’t have all the constants of an issue.
Thank you!