After upgrading Piwik to the current 2.12.0 version, I can no longer access the dashboard. I would only see the screen as shown in the attached screenshot. (I apologize for the small image file; this forum only allows 200KB or smaller attachements.)
I have also downloaded the 2.12.0 file package and FTP-ed the files to replace the files on the server. Unfortunately, this did not help.
Any help would be appreciated. Thank you.