PHP Core Warning – yii\base\ErrorException

$_GET = [
    'slug' => 'serena-zoli',
    'modelClass' => 'app\\models\\muv\\article\\FuvAuthor',
    'page' => '23',
    'per-page' => '10',
];

$_COOKIE = [
    'identity-fe' => '8734o38aothmf58m8vuhagc377',
    '_csrf' => '878616c2847aacbe89ab740a0a4327735fcb77f860a32b866a531d36df9984cea:2:{i:0;s:5:"_csrf";i:1;s:32:"dGZwakdpbVppTVBzMFZVRzRzbDhPWk50";}',
];

$_SESSION = [
    '__flash' => [],
    '__returnUrl' => '/magazine/giornalisti/serena-zoli?page=23&per-page=10',
];