PHP Core Warning – yii\base\ErrorException

$_GET = [
    'random' => '1791483455',
];

$_COOKIE = [
    '_csrf' => '44fdadc636ba4d2b05727370af8a98b63339e0ba0baca4f65326273d93225ddea:2:{i:0;s:5:"_csrf";i:1;s:32:"uTKLdvTXiDBOqgT9vEBxo7zM6d3FNsXh";}',
    'topics-session' => '1791807653.839.17043.687615|d197bbbd1d400bd72372bc93068ad169',
    'PHPSESSID' => '3mcsnhdl83ljlij04kq26upih5',
];

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