PHP Core Warning – yii\base\ErrorException

$_GET = [
    'S' => [
        'search' => 'сумка холодильник',
    ],
    'page' => '142',
];

$_COOKIE = [
    'PHPSESSID' => 'u0hrva3vjno076kvt4icj6dj84',
    '_csrf' => '2b0478fcf3f9c0e072d0c406819d394084e5ff54a222ad57651c5ab96126b097a:2:{i:0;s:5:"_csrf";i:1;s:32:"p3Y99xcvQ8oafUBsFHr5wopacUobQC6d";}',
];

$_SESSION = [
    '__flash' => [],
];