PHP Core Warning – yii\base\ErrorException

$_GET = [
    'random' => '1791113050',
];

$_COOKIE = [
    'topics-session' => '1791157823.983.17009.542777|d197bbbd1d400bd72372bc93068ad169',
    '_csrf' => '7f612e6080dc77e36b6b98bac2c884cc96ed26ef97f46a9a57d4746d3cf26a4da:2:{i:0;s:5:"_csrf";i:1;s:32:"HjcSPrM8ZKCb5SUTTImgKlwoxJKWZ84y";}',
    'PHPSESSID' => 'ca4kt0ms96algsbb3me2l9fck2',
];

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