After configuring the line-of-business application, make sure the .xml file is backed up in multiple locations. This configuration file is necessary for Application Enabler to interact with the line-of-business application. If this file is lost, the application must be reconfigured. In addition, back up any preprocess scripts that are used in the system.
Reinstall Application Enabler or any of its components that have been lost or damaged. Make sure the correct version of the software is installed. A version mismatch between Core Services and any Application Enabler component will yield unexpected results.