PHP Core Warning – yii\base\ErrorException

$_GET = [
    'random' => '1791505757',
];

$_COOKIE = [
    'PHPSESSID' => 'j3srg95l1hgadde8q8re5o09t1',
    '_csrf' => '6c7c643663803d9c0080860836f24cfa3b711050a24e64d7b64ad396f4b05f31a:2:{i:0;s:5:"_csrf";i:1;s:32:"Yki1z2Y1pH6RHqai0Bmc7HY_Tdx6hEwB";}',
    'topics-session' => '1791572560.079.16479.344280|d197bbbd1d400bd72372bc93068ad169',
];

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