PHP Core Warning – yii\base\ErrorException

$_GET = [
    'random' => '1791230980',
];

$_COOKIE = [
    'topics-session' => '1792041882.597.16615.359233|d197bbbd1d400bd72372bc93068ad169',
    '_csrf' => '1e95b2135b920409fa917be8453dc2d1b4034495b3016760ea6c2a7c5ac5bd9ca:2:{i:0;s:5:"_csrf";i:1;s:32:"PEWxVaoJggA7AdRGDX2eCaatfHDDVPBx";}',
    'PHPSESSID' => '2q01p653590opkm7o5431tspi0',
];

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