02‐03. Common Problems and Solutions Error while in use Cause The files in the DS folder might be corrupted. If the files in the DS folder didn't save properly due to a failed copy or something, the DS itself or the preference files could get corrupted, which might cause system errors. Solution Please reinstall DS and start it up again. Reference： Troubleshooting_When an Error is Displayed and DS Stops P24~33 If the issue persists, initialize Design Simulator (DS). Reference： How to Reinstall the Design Simulator P34~47 Copyright 2026 GENERAL Inc. 9