Error when authenticating in Yii2?

Question

Yii

public function beforeAction($action){

        if (parent::beforeAction($action)) {

            if (!\Yii::$app->user->can($action->id)) {
                echo 'Ошибка доступа';
            }

            return true;

        } else {
            return false;
        }
    }

Almost finished user authentication through the database. But this is where it throws an error.
Tell me what it means /
Displays "Access error"
Authentication does not occur if manually returned true. This creates PHPSESSID and creates _identify

Answer 1

access rules.
Google rbac.
Roughly speaking, you don't have the authorization action for the guest allowed, and therefore the script throws an error.