If you get an Internal error when trying to edit your pages in MediaWiki, you should first enable debugging by adding the following line at the bottom of the LocalSettings.php file: $wgShowExceptionDetails = true; You can modify the file using FTP, SSH, or File Manager in cPanel. This will give you the exact error message, as well as a backtrace result so that you can see what is causing the problem. If you get an error message similar to this: Invalid h node passed to PPNode_DOM::splitHeading add the following code at the bottom of LocalSettings.php: $wgParserConf[‘preprocessorClass’] = ‘Preprocessor_Hash’; This should resolve your issue and you will be able to edit your MediaWiki pages again.

Then click Log in / create an account and create a new MediaWiki account.

More information on how to manage your MediaWiki can be found in our tutorial.