PHP Core Warning – yii\base\ErrorException

$_GET = [
    'random' => '1765752935',
];

$_COOKIE = [
    'PHPSESSID' => 'uk8q17iqpa46smsnbplktt1bs6',
    '_csrf' => '489c42624a64e6adbd07211bd7d622dc467f0f8fc3d95264985b2ec91a28ef4ea:2:{i:0;s:5:"_csrf";i:1;s:32:"8D5gCemi9yRAXGz0mb0YgiPxF44N6Hm9";}',
    'topics-session' => '1765881994.753.16079.760598|d197bbbd1d400bd72372bc93068ad169',
];

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