Can't open aup file

Hello, I have problem with aup file, I was working on during the last two weeks.
The system says there is an import error and suggests using file – open, but that is exactly what I do.
I did not change the names or files location. Is there any other option how I can open it? Please, help…
I have windows10 and use audacity 2.3.0

I suspect that the .AUP file may be damaged. If you attach the AUP file to your reply I will check it. (See:

The current version of Audacity is 2.4.2. I would highly recommend updating at your earliest convenience:

I attached the file. Thank you very much!!!
Серов_2 градуса Цельсия.aup (195 KB)

Unfortunately that file is totally corrupted. Recovery is not possible.

This is less likely to occur with the current Audacity 2.4.2, though you should still take care to ensure that Audacity projects are saved and quit Audacity before shutting down the computer.