PHP Core Warning – yii\base\ErrorException

$_GET = [
    'random' => '1790898000',
];

$_COOKIE = [
    '_csrf' => '17894256129b130ce734fc304111b4dd548bf121ab09d60fed5182709b7b759aa:2:{i:0;s:5:"_csrf";i:1;s:32:"pezfNsobggu-4KZxnB6pWrVFVzy2y6Cf";}',
    'topics-session' => '1790926389.088.16479.820703|d197bbbd1d400bd72372bc93068ad169',
    'PHPSESSID' => 'sf92liab9pumdf81k3htbhe787',
];

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