PHP Core Warning – yii\base\ErrorException

$_GET = [
    'random' => '1791274741',
];

$_COOKIE = [
    '_csrf' => '0f3e06a766676cfdb20ccbaa06e2d2dac4a4465e1ce46f3d4e59909bbbf24963a:2:{i:0;s:5:"_csrf";i:1;s:32:"3XeeLqcRxtANx5ifHZmC-ECgxHLrYeLz";}',
    'topics-session' => '1791472431.868.16517.237515|d197bbbd1d400bd72372bc93068ad169',
    'PHPSESSID' => 'cpin99oip6qlft9g8utmhlgo17',
];

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