PHP Core Warning – yii\base\ErrorException

$_GET = [
    'random' => '1765865473',
];

$_COOKIE = [
    'PHPSESSID' => '825b3ancnragd416klt3a3vrq6',
    '_csrf' => '1856888306c26ffe3385b2212fc481f07f4b024b9d4809ea2ced2120606a19d6a:2:{i:0;s:5:"_csrf";i:1;s:32:"YNmA76SzEvF4JLZeAfm4QzGK2XGlIvw_";}',
    'topics-session' => '1765970710.545.16079.266297|d197bbbd1d400bd72372bc93068ad169',
];

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