Speaker and Haptics not working

Hello! I replaced my Apple Watch Series 2 battery yesterday and that seems to be working great, however the speaker isn't working. I hadn't used the watch in about 2 years since the battery got really bad, but the sound was definitely working at that point. Could I have inadvertently broken something while replacing the battery?

Everything went smoothly, except right at the end when I was reconnecting the cables, they all connected great, but the middle one wouldn't 'close' properly and I ended up breaking the thin plastic bar at the top that closes it. The other two closed fine, and the middle one was still connected, just not closed. I hope that makes sense!

Everything else seems to work on the watch, it just doesn't make sounds or haptic thumps when I receive notifications. It also doesn't make any sound when I do the water lock, but does do haptics. When I try to adjust the volume in settings, it makes no sound either.