wp admin doesn’t display all language filter on the admin bar

Hello there ! I have already contact you but I am facing some other issues too . I would like to explain you furthermore what’s going on with my website . Everything works well for readers except the fact that I tried to change and have two static pages and then I clicked from the language settings the url modifications(if you check this option, your Home page url will look like:
? https://www.yoursite.com/en/ ) and now when someone visits my greek version and click the logo it leads him on my english version and I have solved it earlier but I remember how . I have also done all the pages with the plugin duplicate page and have the plugin polylang for customizer . What I’ve noticed from others in tutorials is that I don’t have in the admin bar the language filter and now when I am in the admin area doesn;t display all my posts and all my pages . Also after that I activated the customizer polylang I don’t know if I a missing a setting but I did a new English post and then from admin page I went to all posts and also all pages and at the area screen options I check both English and Greek I press apply but doesn’t save the English and doesnt display all posts and all pages .Shows 5 posts published and dispaly only 3 and also shows 40 pages and shows only the 20 https://snipboard.io/2EtC7L.jpg
https://snipboard.io/Udprnu.jpg
If I uninstall Polylang and installed it again and do everything from the start?

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