How can I fix my XPS 13 9310 track pad buttons?

Hello, I have a Dell XPS 13 9310 0991 and the track pad buttons stopped working. The track pad itself works; I can move the pointer and click by tapping the track pad, but the right- and left- click buttons do not do anything when I press them.

I tried using these buttons in the BIOS to see if it was an OS issue (I'm using Linux Mint 22.3), and the same thing happened. The track pad works, but the buttons don't.