Fatal error: Uncaught Error: Class 'phpbb\install\task_base' not found in /home/Filipie/public_html/mikolgallery/forum/phpBB3/phpbb/install/module/install_database/task/add_tables.php:21 Stack trace: #0 {main} thrown in /home/Filipie/public_html/mikolgallery/forum/phpBB3/phpbb/install/module/install_database/task/add_tables.php on line 21