Yesterday afternoon I decided to upgrade from 2.0.14 to 2.0.15 and then to 2.1. The upgrade went fine but I realized I needed to revert briefly. After clicking on the revert link under the 2.1 upgrade it showed the dots and looked like it was doing it correctly, however now all I see when I go to my admin page is a white screen. No log-in prompt or anything. The store is closed as well. Does anyone have any suggestions for how I can get access to the admin back? I submitted a ticket first thing this morning, since I couldn’t submit it last night due to the online helpdesk being down, but haven’t heard back yet. Any help would be appreciated. Thanks.
In case anyone else has this issue in the future, tech support said that the problem was that the files in my skins/basic/admin directory didn’t revert properly. They restored the files manually and fixed the problem.