PHP Core Warning – yii\base\ErrorException

$_GET = [
    'random' => '1791685834',
];

$_COOKIE = [
    'topics-session' => '1791898242.76.16697.464067|d197bbbd1d400bd72372bc93068ad169',
    '_csrf' => 'feaa9f5b0e7187af0f3f8ac564a167d60e56cc14807bb56df5475e6f3ccdb409a:2:{i:0;s:5:"_csrf";i:1;s:32:"JF2re1gwG41bKez2U2RpYj-R3RTKIJ21";}',
    'PHPSESSID' => 'cuqn3qlb6l1uenmmo232rnva40',
];

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