Troubleshooting application Issues Troubleshooting tips are provided for the most common issues encountered. Troubleshooting HTTP errors Problems can be caused by issues as diverse as system errors, Web server errors, fglrun process errors, incorrect configurations, or other issues. Use the GAS logs to try to isolate the problem and determine if it is an issue that you can resolve or one that needs the assistance of your local Four Js support center. What if the application doesn't start? There are several reasons why an application does not start. Here are some basic troubleshooting procedures to follow as a standard approach to solving problems. Get application session id When you want to find the DVM and proxy logs to troubleshoot an application, use this information to locate the session identifier representing the GAS session. Rendering issues If an application does not render or display as expected, these are some things to do to help resolve it.