PHP Core Warning – yii\base\ErrorException

$_GET = [
    'random' => '1790830793',
];

$_COOKIE = [
    '_csrf' => 'ebaf860f18e96066ea5047fb6727c49758556c8e15c71afe333d3781f838dd15a:2:{i:0;s:5:"_csrf";i:1;s:32:"rpeQjeB2qZsuqfwntRcDnfxnoQho4Ur1";}',
    'topics-session' => '1790839175.87.16615.156655|d197bbbd1d400bd72372bc93068ad169',
];

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