PHP Core Warning – yii\base\ErrorException

$_GET = [
    'random' => '1765903380',
];

$_COOKIE = [
    '_csrf' => 'e783dc6d91a53529e9e147ed5d134698727b9caafaa26a20bed206c63004cfada:2:{i:0;s:5:"_csrf";i:1;s:32:"PB4h1hJH4sbcW465E-0KC-5QHu6vW3u8";}',
    'PHPSESSID' => 'v4juceiameikp1njlj7mvi4tl4',
    'topics-session' => '1765970818.16009.371179|d197bbbd1d400bd72372bc93068ad169',
];

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