The following places can be checked to determine the nature of a run time error from a transaction with CenTran:
CenTran Configuration Manager
Open the CenTran Configuration Manager.
Check if the CenTran service is installed and running under the Service tab. If the service is not installed and running, go to the Getting Started Guide to set up CenTran.
Check if the CenTran service is processing transactions under the CenTran Status tab. If CenTran is properly set up but processing has stopped, try stopping and restarting the service.
Check the CenTran Event Log for indications of the nature of the error.
System Event Log
Open Control Panel >> Administrative Tools.
Select Event Viewer, right click and select Run as administrator.
Look for the section labeled Summary of Administrative Events. Expand the category called Error. Look for an entry with a Source labeled CenTran Service, and double click it.
Examine the errors list there. If CenTran has had internal exceptions, the details should be listed as entries here.
Windows Communications Foundation (WCF) Trace Log
Open the CenTran install directory. Look for a file named WcfServiceTrace.svclog. Double click this file to open it using the Microsoft Service Trace Viewer.