Those are logs made by the system. I need the logs created by ArchiCAD's own bug reporter which is called "GSReport". When ArchiCAD crashes, you should see GSReport dialog (with the image of a big red bug in it) which you submit to Graphisoft, and you receive an ID back, which is logged in CrashSubmissionLog.txt. If you don't have this text file in user\library\logs, then I might not be able to help you.
Gergely Kmethy
VP, Customer Success, Graphisoft