Fatal error: Uncaught Error: Call to undefined function mysql_connect() in /var/www/apps.fs.cvut.cz/conference/epe2020/common_init.php:3 Stack trace: #0 /var/www/apps.fs.cvut.cz/conference/epe2020/add_register.php(3): include_once() #1 {main} thrown in /var/www/apps.fs.cvut.cz/conference/epe2020/common_init.php on line 3