Help with opening errors on Adobe Animate 2020

[littleE]

Hey, I'm trying to open a file that I will eventually upload to Youtube but it won't open because of some kind of error.

the file reads:

This doesn't happen with any other .fla file. Does anybody have any ideas about  what to do?

I've already tried restarting the program and PC

[n. tilcheff]

Hi mate,

It's not a very informative message, but translated into plain English it means that your file is corrupted.

Please, accept my condolences.

If you have a backup, just start from there.

You can try WinRar, but restoration of assets is rarely successful and in best cases - partial.