In last 3 days I've been trying to login to this forums with my Ubuntu One SSO account but after I enter my credentials and confirm the logging in to https://ubuntuforums.org with "Yes, log me in", I get the following error from the server:


You don't have permission to access /login.php on this server.
Apache/2.4.7 (Ubuntu) Server at ubuntuforums.org Port 443

I've tried the login in various web browsers and also deleted cookies before the login but to no avail.

Is this a known issue/bug in the forum software?

My Ubuntu One account activity shows that I last logged in to forums on 20 February 2016. Also, on that account I successfully changed my password today. So, I'd say that everything's fine with my Ubuntu One account.

(I'm writing this with a new Ubuntu One account I created today with another e-mail address.)

What are further steps I can do to solve this problem?

-- rpr.