PHP Core Warning – yii\base\ErrorException

$_GET = [
    'random' => '1790921489',
];

$_COOKIE = [
    'PHPSESSID' => 'n9oitt47f6k74in77hbbbqeuq6',
    '_csrf' => 'aef4dc60a2ca48333f3a3135d13143fee29b704f0ddf101d865c2ea2e4a4c978a:2:{i:0;s:5:"_csrf";i:1;s:32:"QoO6ma2NWIeBJrLjtXNGK1FB9X9_MOL9";}',
    'topics-session' => '1791382864.264.16975.590656|d197bbbd1d400bd72372bc93068ad169',
];

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