We tried to integrate zoho.eu CRM with our GetResponse account via API but failed to do so. GetResponse said the key was invalid. We contacted GR support and after scrutinizing the issue they learned that ZOHO returns error

      error code - 4834
      error message - Invalid Ticket Id        

and they were unable to fix the issue on their end. The weirdest thing is that we can integrate zoho.com with GetResponse no problem. However, we really want to have our instance run on the European server. How do we fix it?