No sound plays, software freezes, crashes, can't save or export

This has been an issue with me for a while now, and I've tried looking at other forum posts or Musescore's support/FAQ built-in pages, and nothing has worked for me. What was happing for a while was Musescore would work perfectly fine. After a while of the software working, it stops working. And when it stops working, it freezes a short while later. And then I have to exit out of the program and come back. This was the process I had to go through, and I didn't ask sooner since at least I could get stuff done sometimes. However, things have gotten a lot worse recently. I just opened a new score, and now Musescore refuses to play any sound whatsoever. I did this a few times just to see, I even uninstalled and reinstalled Musescore, yet the issue persists. I tried playing sound from one of my old scores, and it worked fine. Then, I tried playing from the new score, and the sound stopped playing on both sides. This has been so annoying that I haven't used the software for long enough to say whether or not the freezing issue is still there.

I also can't export the score. There export button on the file menu is grayed out. I had a similar issue before where I would click save or export, but it wouldn't actually do that. I think this is different, but I honestly can't tell.