How to fix Macbook trackpad's click feeling?

For the past several days, I noticed that the trackpad on Macbook Pro does not move/press down when I click with my finger. Previously, when I used to click, I felt that the trackpad moved down by a tiny bit, e.g. around half a millimeter. But now, it does not. I went to Trackpad settings and made sure that "Tap to click" is enabled. Restarting the computer did not fix the issue either. How can I get it to work like before?