Warning: Undefined array key "roles" in /var/www/vhosts/photographs/classes/controllers/UsersController.php on line 436

Fatal error: Uncaught TypeError: implode(): If argument #1 ($separator) is of type string, argument #2 ($array) must be of type array, null given in /var/www/vhosts/photographs/classes/controllers/UsersController.php:436 Stack trace: #0 /var/www/vhosts/photographs/classes/controllers/UsersController.php(436): implode() #1 /var/www/vhosts/photographs/classes/Router.php(144): UsersController->edit() #2 /var/www/vhosts/photographs/index.php(24): Router->init() #3 {main} thrown in /var/www/vhosts/photographs/classes/controllers/UsersController.php on line 436