My logs are being flooded with errors from two specific workflows. It seems that these workflows have current processes dating back 5 or 6 months. It looks like the user closed the browser without finishing the workflow, and the timeout functions are not working. The log file says "Object Reference not set to an instance of an object" when attempting to follow the timeout path. But I don't have anything between Timout and End. I have tried aborting these processes manually, but it just takes me back to the main page without actually aborting. I even completely removed the project and re-deployed it, but the processes are still there. Any ideas how to remove these, and what might be causing the timout errors?