Hi,
If you're hearing the male voice saying 'Sorry, we are experiencing
difficulties. Please call back at a later time. Goodbye' - then the
error is arising from VXMLServer.
In that case, you can look in the the
VXMLServer/applications/appname/logs/ErrorLog folder. Or if you see
nothing there, look in the VXMLServer/logs/GlobalErrorLog folder
If you are seeing 'error.badfetch.http.404' in your error.log then you
probably did not specify the Default Audio Path URI correctly in the
Studio app. This is done by right-clicking the app name in the Navigator
box and selecting Properties / Call Studio / Audio Settings.
Configure Default Audio Path to point to your application prompts
http://hostname/en-us/app
(you can replace hostname with an IP or the word media or mediaserver or
domainname - so long as your gateway is configured to know what that
indicates.)