PHP Core Warning – yii\base\ErrorException

$_GET = [
    'random' => '1791232502',
];

$_COOKIE = [
    '_csrf' => '8cd914f4073932deccc4761751b769a06c62532364cee8beda0d26d3deb91fdfa:2:{i:0;s:5:"_csrf";i:1;s:32:"cFZHg8LheUTHtNduPKUmIcHwhhjHmFLb";}',
    'topics-session' => '1791470847.729.16482.50170|d197bbbd1d400bd72372bc93068ad169',
    'PHPSESSID' => 'sv83btfrfti83qi0ulvrd8hrg4',
];

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