Possible reasons why status report page is blank I'm using Drupal 7.23 on my test site and since a couple of days the status report page is completely blank (no theme, no menu, nothing). No info shown at all. Other (report) pages are shown without noticeable issues.

Does anybody have an idea what could cause this?
I have a almost similar 7.23 life site that shows this /admin/reports/status report perfectly. 

Any log-file to check?
I didn't manage to get the php logging, but I do know now why this report page was blank. I had installed a not complete functioning module named Backup and Migrate Opencloud that needed Libraries 7.x-2.0 or higher. I was still on 7.x-1.0. After I updated to the latest libraries version the status report page showed up again.