PHP Core Warning – yii\base\ErrorException

$_GET = [
    'random' => '1790981585',
];

$_COOKIE = [
    'PHPSESSID' => 'omf25p1vuh741n2pir60iu3pa3',
    'topics-session' => '1791222909.12.16490.742410|d197bbbd1d400bd72372bc93068ad169',
    '_csrf' => '2457e05e9e95d1632bc38c4b1e1557adb4172c72f5193062986669a967460e4fa:2:{i:0;s:5:"_csrf";i:1;s:32:"OPkyF6aAAMo2WS5r05pD3FimE7laZafh";}',
];

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