Site freezing when trying to update progress

I just started using this site and add some manhwas on the library, but after that i cant edit at all, like the current chapter, status and ratings. In fact the site the freeze and cant be scrolled once i try to change it. I can change the chapter number to what im reading and status but even when i click save progress, the reading progress dont update. Also when i screen freeze, even when i back it still freeze and keep needing to be refreshed to undo the freeze but even after that when i try to update it freeze again and again