Did you try to maxime that errors, if some error will show ?
Yes it is set to Maximum, but again no error or message appears
Also try set permision to 666 for test. Also check if you are super administrator, not just administrator or something else..
I am able to log in as their user and see the backend. And the user record has "Super Users" as a User Group.
Btw. you moved your new installation to another directory, check if path inside configuration are set right, this can be the issue.
It's actually a fresh install. The Super User account works fine with the original install tables created. But what I did was rename the default jos_users table to old_users then imported another jos_users table from another Joomla 3.3.3 website. Likewise for the jos_usergroups and jos_user_usergroup_map tables.