After I was able to send the form to the server, I checked the status of the process instance and noticed that it always ended to an Error status. The error says only, that "The request failed with HTTP status 401: Unauthorized"?

 I tried to retry but it just enters another ID to the process.

 This is what I get in Server Console: Error occurred in uploadFile code activity: The request failed with HTTP status
401: Unauthorized.

any help will be appreciated