Warning: require_once(/var/lib/mediawiki/extensions/bad-behavior/bad-behavior-mediawiki.php): Failed to open stream: No such file or directory in /var/lib/mediawiki/LocalSettings.php on line 167

Fatal error: Uncaught Error: Failed opening required '/var/lib/mediawiki/extensions/bad-behavior/bad-behavior-mediawiki.php' (include_path='/var/lib/mediawiki/vendor/pear/console_getopt:/var/lib/mediawiki/vendor/pear/mail_mime:/var/lib/mediawiki/vendor/pear/net_smtp:/var/lib/mediawiki/vendor/pear/net_socket:/var/lib/mediawiki/vendor/pear/net_url2:/var/lib/mediawiki/vendor/pear/pear-core-minimal/src:/var/lib/mediawiki/vendor/pear/pear_exception:/var/lib/mediawiki/vendor/pear/mail:.:') in /var/lib/mediawiki/LocalSettings.php:167 Stack trace: #0 /var/lib/mediawiki/includes/Setup.php(220): require_once() #1 /var/lib/mediawiki/includes/WebStart.php(85): require_once('...') #2 /var/lib/mediawiki/index.php(50): require('...') #3 {main} thrown in /var/lib/mediawiki/LocalSettings.php on line 167