This is a very frustrating issue. I am simply trying to add a new moderator to my forum, but any time I click “Manage User Groups” and then click to add an administrator, I see the animated square wait, and it just stays there. Then if I click to any other page at all, including the home page or a blog post, I get a 505 error on my server. Very oddly though, if you aren’t logged in the site works fine.
I have to wait 10 minutes and only then can I access my site again when logged in, and if I try to process again I get stuck again.
Please advise!