PHP Core Warning – yii\base\ErrorException

$_GET = [
    'S' => [
        'search' => 'сумка холодильник',
    ],
    'page' => '36',
];

$_COOKIE = [
    '_csrf' => 'e171a3c80ed115169eeec988859d6fc2ca3588c1f065d3eaca8bd2b4a78b4f5aa:2:{i:0;s:5:"_csrf";i:1;s:32:"Ol6JQG92DqG-MbEEyW45VcOVkngC_Ea-";}',
    'PHPSESSID' => '7o21qufol8crp4q6dik9c1lclk',
];

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