phpbb/phpbb — pull request #2011 by Zoddo (2014-02-06 18:21:33+00:00)
Title: [ticket/12003] ACP broken when error thrown

When an error isn't caught or something is dumped to the page while in the ACP, the entire ACP is unusable (see screenshot).
This issue has been an extreme annoyance of mine for a very long time and it would be nice if it could be fixed.

PHPBB3-12003