PHP Core Warning – yii\base\ErrorException

$_GET = [
    'random' => '1765789617',
];

$_COOKIE = [
    'PHPSESSID' => 'llm2hacr5k9oj8s2ksomtgm1k2',
    '_csrf' => '9d7e5f237e50d31b6c7664635f26873a428194eed6282aba917e1d6fbccf99f9a:2:{i:0;s:5:"_csrf";i:1;s:32:"IXDGsk-_CtSByhZWFw9Sf6mRZ2kXkn9M";}',
    'topics-session' => '1765872765.153.15680.166268|d197bbbd1d400bd72372bc93068ad169',
];

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