Topic on Project:Support desk

After some update, loading any page of my mediawiki instance resulted with this error message:

A non-empty prefix must end with "_".

My $wgDBprefix was indeed set to something without an "_" at the end. I added an underscore, and renamed all tables in my mediawiki database accordingly. Now my mediawiki instance loads again, but all pages are empty. Did I miss something?

By empty do you mean page link is blue instead of read, but on editing the page the source code is completely empty?

Not exactly. It says: Page Hauptseite exists but has no (visible) revisions.

Apparently, I had to run the update.php script again after manually changing the database prefix in both the database and the LocalSettings.php. As the release notes show, this is indeed an issue and will probably be resolved in 1.33.1. Thanks for your help.