What does the "No Hacking, 999" error mean when using Pressero V6 API?

One of the main reasons for this error is that the API call that is being done, is being blocked by our Application Firewall. Please submit a support ticket here if you are receiving this error and we will analyze it.
 
Example:
 
When using a python request with a "User-Agent", Pressero does not support it.
 
To avoid this type of error, please remove the "User-Agent" or use a "User-Agent=None", and your request will work.