Garageband crashing when I try to open a new project

Hello, I'm having an issue where Garageband is crashing, without fail, every time I try to open a new project. I can open Garageband just fine, and it has no problem loading my most recent project. In fact, it doesn't even have issues with opening my old projects. But, if I try clicking "File-New..." and then try to open an Empty Project on the "Choose a Project" prompt window, Garageband immediately crashes, and an error window pops up a few seconds later, with this information:

The information goes on for many, many more pages, but I don't know how to include all of that here.

Anyway, I opened Console to try to isolate the processes happening at the moment of a typical crash. And a few things caught my eye.

The first error that pops up is from the Garageband process itself. Here it is:

Then, about a half second later, several errors start appearing from the process "coreaudiod." These error then start looping, as you can see here:

...At which point, I'm guessing the actual Garageband crash occurs.

I can't think of any reason why this would suddenly start happening. Nothing has really changed with my setup since this crash began happening a few weeks ago? At least none that I can think of.

I have already tried restarting and uninstalling and reinstalling Garageband. But that didn't fix it. I also have more than 20GB free on my hard drive, in case that would affect anything. I'm working on a 2014 Macbook Pro Retina, so my battery is in really rough shape as you can imagine, and I leave it on the charger pretty much 24/7 because it only lasts like 10 minutes at a time. Again, just mentioning that in case that tells you anything useful.

I'd be super grateful if anyone has any ideas on why this crash is happening, and how I might be able to fix it? Thank you so much in advance.