PHP Core Warning – yii\base\ErrorException

$_GET = [
    'random' => '1790895067',
];

$_COOKIE = [
    'topics-session' => '1790908530.087.17043.708023|d197bbbd1d400bd72372bc93068ad169',
    '_csrf' => 'ac9b90c508fd13c9b77623b79e1f70b540dd232cd9072f71208b48d7d778b457a:2:{i:0;s:5:"_csrf";i:1;s:32:"yXmz8LEfUkWJ5XwquuMaQ7aU79ATQ1ZH";}',
    'PHPSESSID' => 'gulf4rm5rt7rlpd0t28snhp0r6',
];

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