PHP Core Warning – yii\base\ErrorException

$_GET = [
    'random' => '1790901701',
];

$_COOKIE = [
    'topics-session' => '1790914683.226.16480.127786|d197bbbd1d400bd72372bc93068ad169',
    'PHPSESSID' => 'aef6d19hps1tincv3re5h6fga0',
    '_csrf' => '7cddd448fafda2053e7d38d0189bae36d2e7fd18ba70df24d00ecf90025a8572a:2:{i:0;s:5:"_csrf";i:1;s:32:"Nt9cdAoZ4mZNzD0MtiammyQ7oQEo0ew_";}',
];

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