There are multiple related bugs around logins, for example when a browser opens with mutliple Judgeapps tabs, each one goes to a “login” link, e.g.
However, once a user is logged in, then this page should go to the logged-in version (in this case, JudgeApps | Log In ); instead, it still asks for a login, and that login produces an error:
Forbidden (403)
CSRF verification failed. Request aborted.
More information is available with DEBUG=True.
(I will note that I posted about this in Jan 2019, and it still hasn’t been fixed.)