I experienced the same error, so I don't think it's a solved problem.
In my case, I just logged into the MySQL database to make an admin user like this:
UPDATE users set is_admin = true WHERE username = really_me
I experienced the same error, so I don't think it's a solved problem.
In my case, I just logged into the MySQL database to make an admin user like this:
UPDATE users set is_admin = true WHERE username = really_me