PHP Core Warning – yii\base\ErrorException

$_GET = [
    'random' => '1791344985',
];

$_COOKIE = [
    'topics-session' => '1791359593.689.16490.968912|d197bbbd1d400bd72372bc93068ad169',
    '_csrf' => '1c77c56931ed762b13a1bec23ba3095ba24dd096b3403770ca1cffb132843e62a:2:{i:0;s:5:"_csrf";i:1;s:32:"FkeD39MuR24ABxEVCtkdTwqpG1TtkY4a";}',
    'PHPSESSID' => '45s665j7lhuub3pt7k02f2ehk7',
];

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