Hi,
I have a colegue who encountered a such error few weeks ago: DELTA DEBUG ERROR with a code. The "good" part was that the message appeared on the "message area" and not in a DOS window and that's why PRO/E did'n crash.
I have to tell you it will take you a lot of time to identify the source of the problem. In our case, the error message appeared on a specific assembly, after a regeneration command. I thought that the problem was an subassembly. But when I opened it separately, I had no errors. I suppresed this subaseembly from the main assembly and I had no errors. I reassembled and the error appeared again. What was wrong? My coleague told me he made an restructure, but he did'n notice the error at that time. The only solution to remove this error was to recreate the assembly from the begining.
Now, in your case, try to follow this steps:
1. Identify which part/assembly gives you the error (check also the trail file).
2. Open it separately and see if the error persists after a minor modification and a regeneration. You must "force" a regeneration bu changing something in the model.
3. Files like MDB or LDB are used by Mechanica. Did you performe any structural/thermal/motion analysis on the pars/assembly? If yes, try to make a copy of that part/assembly and then in Integrated Mechanica mode delete all features like loads, constraints etc from the model.
3. If you was able to identify the model in cause, you must know that this type of error that make PRO/E to crash are caused by a feature. Usualy the last. Try to erase it and recreate it again.
By the way, are you working with Intralink?
Try to give us more details about your model, your PRO/E version and build. Maybe at least we can help you.
-Hora.