I am sure I was running 13 on Windows 7 so I don't think that is your issue.
The oldest version I have installed is 15 and that is running on Windows 10.
If you are getting a bug report then it is more likely just a problem with that particular file.
Unfortunately 13 is so old it is no longer supported by Graphisoft.
You can try sending the bug report (take not of the report number) and then contact your local distributor - but I am not sure how far you will get.
Can you open other files with no problem?
If so then you could try opening a blank file (the template that was used for the bad file would be better if you have one).
Then try to MERGE the bad file in (FILE menu > FILE SPECIAL > MERGE).
If it works you will have the plan and model - you will need to re-do any annotation in elevations and setup layout pages again.
Or do you have a BPN file - if so can you open that?
Barry.
One of the forum moderators.
Versions 6.5 to 27
i7-10700 @ 2.9Ghz, 32GB ram, GeForce RTX 2060 (6GB), Windows 10
Lenovo Thinkpad - i7-1270P 2.20 GHz, 32GB RAM, Nvidia T550, Windows 11