Hello,
1) Check the pagination now. We don’t see any jump to page 3 instead of 2 if you pressed the 2-page link no matter what version we use English or Georgian.
2) To clean the browser cache you can use this extension https://chrome.google.com/webstore/detail/clear-cache/cppjkneekbjaeellbfkmgnhonkkjfpdn?hl=en
3) We don’t see problem with the tag page which use Georgian characters, for example, this tag http://prntscr.com/qelcdd and we get 2 products http://prntscr.com/qelcy1 But using non-Latin characters in slug (no matter page, product, category or tag) is not very good for the SEO, so we would recommend you to use Latin characters for your slugs.
4) I don’t see only 14 pages, I can see the 16 page as the last page https://gyazo.com/862b60b2d863db71530b4cc75bd94d59
Regards