PHP Core Warning – yii\base\ErrorException

$_GET = [
    'random' => '1791273701',
];

$_COOKIE = [
    'PHPSESSID' => '3qidmnbq2eesf7cqvgrb3nel86',
    '_csrf' => 'cf762aaa17df434f733fce200236575637fd144fc2ee3520fc2f9e9d34656681a:2:{i:0;s:5:"_csrf";i:1;s:32:"XE9tXkGake36B-DPEV3qluIceqEXLYaU";}',
    'topics-session' => '1791283909.002.17009.560039|d197bbbd1d400bd72372bc93068ad169',
];

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