PHP Core Warning – yii\base\ErrorException

$_GET = [
    'random' => '1791274112',
];

$_COOKIE = [
    '_csrf' => 'b64d32d7d7652b118ba6a51f9c6a3139b3125d14a7b1fb49a347948a0f033a67a:2:{i:0;s:5:"_csrf";i:1;s:32:"fc5PYv5OaNzKOQpCmmzbkReFPFwyvvIe";}',
    'PHPSESSID' => 'tct41smp41g5l7742psqjfsuj7',
    'topics-session' => '1791520988.447.16475.560794|d197bbbd1d400bd72372bc93068ad169',
];

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