Error 82 is a nuisance, not a necromancer. It cannot kill your file unless you panic and force-close Inventor.
A frequent cause is a missing RealDWGSettings.xml file. You can manually restore it: Solved: Error when installing inventor 2024 - Error 82 error 82 autodesk inventor
The application fails to launch, or users encounter a similar error when importing Revit/AutoCAD models into related products like 3ds Max. 2. Root Causes Error 82 is a nuisance, not a necromancer