Luckly not!
You're pc might be just too new or good, I heard windows 10 and 11 in combination with some graphic cards can cause problems in rpg maker mv games.
But in this case, it might be a folder that was created then starting the game. This folder can corrupt in very special circumstances causing the game to crash. If this would be the problem it should not happen when trying to play it on a different computer. This folder also can be manually delete which would solve it but that folder is pretty complicated to find. And I also can't say to 100% that this is the bug, it's just the best guess that I currently have.
No one else so far has reported this bug which would could point towards either no one else encountered it, or whoever may encountered it never reported it. So i unfortunately also have no other leads to look into it. I also ask a friend if they could play the version 1.1.0 for a few hours to see if their game also crashes after some time.
Every battle also should have music I think. If a music file would be missing you would get a differnt error that said something like: "Can't find (Music Name) file. Click restart to try again."
If you remember which battle it was I certainly can look and double check of course!
On a small side note, if you should have transferd your save date from a earlier verion did you interact witha safe flame at least once, it sets some triggers right but I doubt that would be the cause of this bug but I thought I might throw that in.
Also save date from the Demo Version also isn't compatible, just to root out some possible other causes I can think about.
I'm very sorry that your experience ended like this-_-