I still don't try to desactivate all the plugins,
but tell me, what is wrong in this 2 following pages ? (I am loosing so much time)
Please make sure your website is accessible for us. It asks for some login/password, we cannot see the forum. Also, leave a direct URL to your forum page. The document has some unclear information about the URLs and pages we couldn't use.
In the meantime, please remove all your inserted data in the Authorization and Redirection fields: