[phpBB Debug] PHP Notice: in file /install/install_main.php on line 73: Undefined property: install_main::$p_master

Fatal error: Uncaught Error: Call to a member function inst_language_select() on null in /home/public/install/install_main.php:73 Stack trace: #0 /home/public/install/index.php(405): install_main->main('overview', 'intro') #1 /home/public/install/index.php(282): module->load() #2 {main} thrown in /home/public/install/install_main.php on line 73