PHP Core Warning – yii\base\ErrorException

$_GET = [
    'random' => '1790902435',
];

$_COOKIE = [
    'topics-session' => '1791004783.581.16940.852491|d197bbbd1d400bd72372bc93068ad169',
    'PHPSESSID' => '7cl9fauj49qmo00jlimi3i76t3',
    '_csrf' => 'd3907930c073cff18d84e12ad346614e8b045c9d371a0c30911d11da4c52d5e8a:2:{i:0;s:5:"_csrf";i:1;s:32:"yjXFYWQULQHuj-slJBw0bFV-vE4KTAkd";}',
];

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