Hello,
1) Could you provide screenshots? Use Lightshot screenshot or Gyazo tool to share screenshots of the template you edit using Backend editor and can’t save. We need to understand what WPBakery template and element give you the problem. Because I can’t replicate the problem.
2) Click on All languages and I see all the pages you have https://prnt.sc/zm3jun If you click on En lang you’ll see only EN pages, if you check the Shqip you’ll see pages for that lang.
Regards