Please try below steps,
1. Stop ADAudit Plus by all means (console/service)
2. You would find an icon in the system tray if it's running as console.Right click and stop the console
3. Open the command prompt (Run as Administrator)
4. Navigate to the Installation directory\bin (C;\Program Files<x86>\ManageEngine\ADAudit Plus\bin)
5. Execute stopADAP.bat
6. Execute stopDB.bat
7. Go to Task Manager and kill the processes corresponding to ADAudit Plus (java.exe, pgsql.exe,wrapper.exe)
8. Ensure the service is in ' Automatic start up '
9. Start the service
Note: If the service is running, please do not start the product from icon in the desktop that might initiate another process for the database and you could launch the browser directly and access the console through designated URL
Hope it helps.
Regards,
ADAudit Plus Team