Fatal error: Uncaught TypeError: array_column(): Argument #1 ($array) must be of type array, null given in /var/www/html/paginas/mentor/mentor.php:256 Stack trace: #0 /var/www/html/paginas/mentor/mentor.php(256): array_column() #1 /var/www/html/classes/App.php(44): require_once('...') #2 /var/www/html/index.php(11): App->getPagina() #3 {main} thrown in /var/www/html/paginas/mentor/mentor.php on line 256