Unhelpful Error Message

Unhelpful Error Message

When testing an Application for my Client, I received the error message displayed in the image below ... this happened for the second time in less than a week ... does not happen all the time within the same on click sesction.

When my Client experiences this in production (this phase of the Application will go live this week) ... what is he (or his external customer/user) supposed to do ?




Gaev