PHP Core Warning – yii\base\ErrorException

$_GET = [
    'slug' => 'serena-zoli',
    'modelClass' => 'app\\models\\muv\\article\\FuvAuthor',
    'page' => '46',
    'per-page' => '10',
];

$_COOKIE = [
    '_csrf' => 'b6e416eb11b597c78343014e7362cc931ed5bd612a52a596ce943f7dea86736ea:2:{i:0;s:5:"_csrf";i:1;s:32:"MXdFOFFJRDB2dVZhaGU4VXVaR2pGVlhx";}',
    'identity-fe' => 'a12umm842bduh66jn3s6n8pk92',
];

$_SESSION = [
    '__flash' => [],
    '__returnUrl' => '/magazine/giornalisti/serena-zoli?page=46&per-page=10',
];