I'm a bit out of my depth so have not done troubleshooting steps I no doubt could have done, but I'm very willing to if you point me in the right direction!
I'm not exactly sure how it happened but my domain inthatmovie.com presents a certificate error. Originally it was a date issue, but if you check now you'll see that it's because I'm using a self-signed certificate (as an attempt at troubleshooting)
When I try to force a renewal in Virtualmin I get the following error:
inthatmovie.com challenge did not pass: Invalid response from http://inthatmovie.com/.well-known/acme-challenge/zOMLdLm9OoZcG8kgPXemm_... [188.8.131.52]: 404
I'm not sure where to go from here.