PHP Core Warning – yii\base\ErrorException

$_GET = [
    'random' => '1791480767',
];

$_COOKIE = [
    'topics-session' => '1792021379.053.16477.864587|d197bbbd1d400bd72372bc93068ad169',
    '_csrf' => '02a3658c29991a1862f154a99d5cf89008599ddd0280bb81446a73c8afe2c205a:2:{i:0;s:5:"_csrf";i:1;s:32:"MmESK1Gp6VlPf8kWk-T4zLCpx0YYhLY4";}',
    'PHPSESSID' => 'vfofebkjc5ofeqofi3uato2o02',
];

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