Problem with dowloading a licenced file

Hello,

I'am using the AdobeStock API to buy licence of an picture and then try to download to my server.

After having bought the licence I can get the link to download the file :

Exemple : https://stock.adobe.com/Rest/Libraries/Download/60686279/1

But when I try to dowload it I have this error message :

{"error":"Cannot find a download for this file and license on this entitlement","code":"201","case":"404a23f05c855599ad50c62294f0598b"}

Here is my PHP code to get the file :

$myServerFilePath='toto/tata/';
file_put_contents($myServerFilePath,https://stock.adobe.com/Rest/Libraries/Download/60686279/1)))
                                                {

How can I do to avoid this error ? I tried to send a parameter tooken=... but it does'nt work...

Please need help ! 

Thnks a lot.
Vincent.