尝试使用paypal激活结算付款时返回'java.lang.NullPointerException'

Hi I'm trying to activate my paypal billing plan with PHP Curl but I keep getting 'java.lang.NullPointerException1' returned

Here's my code

    curl_init($ch);
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_HTTPHEADER,$header);
    curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
    curl_setopt($ch, CURLOPT_CUSTOMREQUEST, 'PATCH');
    curl_setopt($ch,CURLOPT_SSL_VERIFYHOST, 0);
    curl_setopt($ch,CURLOPT_SSL_VERIFYPEER, false);
    $resultTwo = curl_exec($ch);

Likely you're seeing a bug in the PayPal Sandbox backend. Please submit it to merchant support and include the full response, including the Debug-Id header.

Read documentation carefully. cURL sends data with POST method as default, but documentation says, you shoud use GET.

Solution is:

curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "GET");