PHP Core Warning – yii\base\ErrorException

$_GET = [
    'random' => '1766052944',
];

$_COOKIE = [
    '_csrf' => 'f09a71b3e513053ceebec0208c10517e9749626f9aa5162413954d327ba8ed26a:2:{i:0;s:5:"_csrf";i:1;s:32:"7g9zmmsf-1uFHGytQZCEl2O_neBUcI6F";}',
    'topics-session' => '1766110834.917.16209.902380|d197bbbd1d400bd72372bc93068ad169',
    'PHPSESSID' => 'f1gefrmcf1e46i9knoveuqdda3',
];

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