PHP Core Warning – yii\base\ErrorException

$_GET = [
    'random' => '1790964519',
];

$_COOKIE = [
    'topics-session' => '1791015010.928.17008.138541|d197bbbd1d400bd72372bc93068ad169',
    '_csrf' => 'e5ffb87c70f7ce86d26b9967ea208d9d1284e0e54812208b5b987c58cb94148aa:2:{i:0;s:5:"_csrf";i:1;s:32:"A1wuGxtvWXC1r2azRtu2fcDVyMKr-vls";}',
    'PHPSESSID' => '2vp9dgrgepopd3i3mdtp8qme36',
];

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