Site A displays content of my other site, Site B

Hi

I have 2 domains managed by Webmin/Virtualmin.

Site A: jonhogg.com and: Site B: inthatmovie.com

Site A shows the content of Site B. Site A also somehow has the LetsEncrypt certificate of Site B, and is displaying it's content.

Site A has the correct root folder specified so it's not that it's pulling from Site B's public_html folder

I'm not really sure when or how exactly this happened as it's been a month or two I've been playing round with it, but any help appreciated.

Happy to post whatever screenshots or config files are needed.

Thanks