Kill the Technical error message and say something that makes sence

Looking at comments i see that many people have trouble with the 'technical error message'
My guess is that the programmers know what's wrong with the placed order but just throw a general exception.
Reason ?? I wouldn't know. So guys please tell us what's wrong and when you want to throw the 'Technical error' please describe what's wrong.
That will save us a lot of )(*^&)(^ and time.