Your kind reply indicates that you did not understand my question.

We have been using the "Send General Journal Entries" without a problem for 5 years with this client. Today it no longer works as it did previously. 

Clicking on the Send GJE button in the Journal Entry screen just opens the regular "Send General Journal Entries" window. So there is no alternative path.

Rather than give me the "How to use QuickBooks for Beginners" answer, how about an actual answer?