PHP Core Warning – yii\base\ErrorException

$_GET = [
    'random' => '1790939797',
];

$_COOKIE = [
    'PHPSESSID' => 'rgb884u9lvcda9rrohk1q6l326',
    'topics-session' => '1791003828.753.16475.348464|d197bbbd1d400bd72372bc93068ad169',
    '_csrf' => 'bf34ff7f2e14ff298f20578a755c7fb456522c9327feb0f96d583b15bf505a41a:2:{i:0;s:5:"_csrf";i:1;s:32:"f2IwVkFIxx2LUTZulxNkFCvP4z-QNRA4";}',
];

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