Warning: include(/var/www/html/mainfile.php): failed to open stream: No such file or directory in /var/www/html/register.php on line 24

Warning: include(): Failed opening '/var/www/html/mainfile.php' for inclusion (include_path='.:/usr/share/pear:/usr/share/php') in /var/www/html/register.php on line 24

Fatal error: Uncaught Error: Class 'XoopsPreload' not found in /var/www/html/register.php:25 Stack trace: #0 {main} thrown in /var/www/html/register.php on line 25