PHP Core Warning – yii\base\ErrorException

$_GET = [
    'random' => '1791192225',
];

$_COOKIE = [
    '_csrf' => '58abcbe58b862c0ad7e59fcfb91420bfb1b36c93a480d80955f504cbba12d49ea:2:{i:0;s:5:"_csrf";i:1;s:32:"OVwALLJYzEgr_I8aCzIDuS_mvuWmoLgC";}',
    'PHPSESSID' => 'pqg5nk5ca9pg0afgi9a1u72be4',
    'topics-session' => '1791473238.945.16480.622388|d197bbbd1d400bd72372bc93068ad169',
];

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