PHP Core Warning – yii\base\ErrorException

$_GET = [
    'random' => '1791198941',
];

$_COOKIE = [
    '_csrf' => '364e7af53a67a2f9f8c98e1233cf3c0838359915a04083ff7d4cc43c33a30232a:2:{i:0;s:5:"_csrf";i:1;s:32:"fuALjfl3jLEYbaoFiYU1VKhPG_62GdzM";}',
    'topics-session' => '1791240790.891.16940.994931|d197bbbd1d400bd72372bc93068ad169',
    'PHPSESSID' => 'q4pn89ul7efqupmbpviehu1rh1',
];

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