PHP Core Warning – yii\base\ErrorException

$_GET = [
    'random' => '1791489475',
];

$_COOKIE = [
    'PHPSESSID' => 'situ3viigu9gafhr1roit1asf3',
    'topics-session' => '1791965651.636.16697.14101|d197bbbd1d400bd72372bc93068ad169',
    '_csrf' => '62466d2468c632e9c2c68c06e1bdac6fa9bcafbaeb392298c0f1909630c7c9cea:2:{i:0;s:5:"_csrf";i:1;s:32:"oM75kVs2QCCHnFWU4exsJNq0KUG8lSsh";}',
];

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