PHP Core Warning – yii\base\ErrorException

$_GET = [
    'random' => '1791414064',
];

$_COOKIE = [
    '_csrf' => '7964c97e797b50affef6f66f2ac09d1c4b381b48f4b9ba72c973455deb594cd7a:2:{i:0;s:5:"_csrf";i:1;s:32:"blp3ed0VcJYpJKbBTjOjHcV81FWnqRF6";}',
    'PHPSESSID' => '5e3lvf3slqnq7ut9qb8hs73vl6',
    'topics-session' => '1791886042.617.16901.870805|d197bbbd1d400bd72372bc93068ad169',
];

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