PHP Core Warning – yii\base\ErrorException

$_GET = [
    'random' => '1791489237',
];

$_COOKIE = [
    'PHPSESSID' => '574grfgkba8mdhbh4rrdg9epo4',
    '_csrf' => 'e4a96946d1fc9afd4242a1041e86cc45c2db1c6f5b9c8a0f30ffd0473f31563ea:2:{i:0;s:5:"_csrf";i:1;s:32:"7_hFMgjb5qCPoJqaQV6Ctmddn026djuO";}',
    'topics-session' => '1791495831.396.16958.971719|d197bbbd1d400bd72372bc93068ad169',
];

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