Hello, i have problem with my website. When i try to logon i first get page with the edit profile (http://www.domain.nl/your-profile/profile) and there are also my keys for a password... When i try to logon again i see the menu (addons, blocks, layout, tools and pages) when i open a page and edit some text it won't save and keeps running (save). I have more than one websites on the same server and there are no problems. Only this one. Please help me!!

Joomla 3.10.11 PHP 8.1