Fatal error: Uncaught Error: Call to undefined function redirect() in /var/www/html/sys/config.php:17 Stack trace: #0 /var/www/html/sys/config.php(23): session_page() #1 /var/www/html/bootstrap.php(6): require_once('/var/www/html/s...') #2 /var/www/html/index.php(2): require_once('/var/www/html/b...') #3 {main} thrown in /var/www/html/sys/config.php on line 17