# Pastebin lQh4XWI7
Fatal error: Uncaught Exception: Unable to open file /srv/mediawiki/w/extensions/CategorySortHeaders/extension.json: filemtime(): stat failed for /srv/mediawiki/w/extensions/CategorySortHeaders/extension.json in /srv/mediawiki/w/includes/registration/ExtensionRegistry.php:177
Stack trace:
#0 /srv/mediawiki/w/includes/GlobalFunctions.php(51): ExtensionRegistry->queue('/srv/mediawiki/...')
#1 /srv/mediawiki/config/LocalExtensions.php(82): wfLoadExtension('CategorySortHea...')
#2 /srv/mediawiki/config/LocalSettings.php(4640): require_once('/srv/mediawiki/...')
#3 /srv/mediawiki/w/includes/Setup.php(143): require_once('/srv/mediawiki/...')
#4 /srv/mediawiki/w/maintenance/doMaintenance.php(91): require_once('/srv/mediawiki/...')
#5 /srv/mediawiki/w/maintenance/commandLine.inc(77): require('/srv/mediawiki/...')
#6 /srv/mediawiki/w/maintenance/eval.php(39): require_once('/srv/mediawiki/...')
#7 {main}
  thrown in /srv/mediawiki/w/includes/registration/ExtensionRegistry.php on line 177