Hello. I can’t update the extensions, always the 403 page is displayed, even Xstore does not update despite there being an update available. My site is extremely slow, the pages are displayed slowly and the score on GMetrix is D with 48% performance. I am trying to install a WP SUPER CACHE extension but adding extensions is no longer possible in my account. There are also several administrator users who have added themselves, I don’t know by whom and how.