PHP Core Warning – yii\base\ErrorException

$_GET = [
    'S' => [
        'search' => 'рюкзак',
    ],
    'page' => '54',
];

$_COOKIE = [
    'PHPSESSID' => 'je57s9p2vpov3qe4g0vi13vq5b',
    '_csrf' => '863f56db866d82d1456f0f5461ba6662d24273e67695dc6730cc57476725ddffa:2:{i:0;s:5:"_csrf";i:1;s:32:"_1fhn3-Q629qhPthoD-b7PD4rITXSahS";}',
];

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