Singular score will not play

Hello, all!

I was opening up a score that I've been working on, and I noticed that there is no playback. I can press the button and the blue bar moves along, but no sound plays. I can also click on the notes individually and they still play. I tried to see if this was plaguing any other scores of mine, but they all play as intended. I also restarted my laptop to see if that would fix the issue, but to no avail. This is doubly surprising to me because I was just adding to this score earlier today, and it was playing perfectly fine. I'll attach the score itself to see if that can help with resolving the issue.

Thank you in advance!