Can’t access admin panel after updating 5.9.3 (too many redirects)

Hi!

After updating to WordPress 5.9.3 I get this error on my admin panel:

“This site is not working”
hovedstadenssportsklinik.dk redirected you too many times.
Try to clear cache
ERR_TOO_MANY_REDIRECTS

I can still see the front end of the website. But can’t access any admin panel sites.

I’ve already tried to…
– Restore my website from before updating and updating again (same error)
– Followed through on the guide “How to fix error too many redirects” https://www.wpbeginner.com/wp-tutorials/how-to-fix-error-too-many-redirects-issue-in-wordpress/
– Cleared my browser cache
– Disabled all plugins
– Deleting .htaccess
– Added this code to my function.php file
update_option( ‘siteurl’, ‘https://example.com’ );
update_option( ‘home’, ‘https://example.com’ );

Have any of you experienced this and do you have any idea on how to fix this?

Your help is much appreciated, thank you in advance ??

Best regards Ea

The page I need help with: [log in to see the link]