Fatal error: Uncaught Error: Class 'ContextSource' not found in /var/www/html/wiki_2023/extensions/Maps/src/LegacyMapEditor/MapEditorHtml.php:18 Stack trace: #0 {main} thrown in /var/www/html/wiki_2023/extensions/Maps/src/LegacyMapEditor/MapEditorHtml.php on line 18