PHP Core Warning – yii\base\ErrorException

$_GET = [
    'random' => '1791700996',
];

$_COOKIE = [
    'topics-session' => '1792025836.188.16476.983901|d197bbbd1d400bd72372bc93068ad169',
    '_csrf' => 'e55bb3369a29a3fe39ceb582e550d1c99bfd2ee3cb9d052af1cb0efba8ae447ca:2:{i:0;s:5:"_csrf";i:1;s:32:"VyYpEbKlM4mevFIKB1LRqJ5f1XI9Sern";}',
    'PHPSESSID' => 'nmbstka92rfk1sath9b9ld1co4',
];

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