PHP Core Warning – yii\base\ErrorException

$_GET = [
    'random' => '1791699882',
];

$_COOKIE = [
    'PHPSESSID' => 'm92ivl2d7rhtnoorntkrki80u6',
    'topics-session' => '1791833400.434.16814.804831|d197bbbd1d400bd72372bc93068ad169',
    '_csrf' => '294952d57a51d847f79d3961a1354264594aa237c0b8b39a16c8e7d52fbacb79a:2:{i:0;s:5:"_csrf";i:1;s:32:"SLkVbH5vBt7Sk1RgFmf-LmWJWohn5WFD";}',
];

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