PHP Core Warning – yii\base\ErrorException

$_GET = [
    'random' => '1791012265',
];

$_COOKIE = [
    'topics-session' => '1791075499.633.16940.835395|d197bbbd1d400bd72372bc93068ad169',
    '_csrf' => 'b7a4ac9a9ea892dffe75b1e5efba8a3aa8998d064dd898841963e41f8d02854ca:2:{i:0;s:5:"_csrf";i:1;s:32:"XqOv-yZF_nI2-kBBd7zxPPj2I61tFL0p";}',
    'PHPSESSID' => '7fqff45pbu92uifidoh24o20t5',
];

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