PHP Core Warning – yii\base\ErrorException

$_GET = [
    'random' => '1791597686',
];

$_COOKIE = [
    '_csrf' => 'aace73a7e66f89b74f7b73ba9fed1a30ea2ed70706a045cfcbdd594660392a01a:2:{i:0;s:5:"_csrf";i:1;s:32:"Cm8k7wh26Pcfdj16HKlJH9VuKtQgx-4M";}',
    'PHPSESSID' => 'cdu9q8ngue4i8on3l2t1bljsu1',
    'topics-session' => '1791656664.261.16551.569401|d197bbbd1d400bd72372bc93068ad169',
];

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