Site version displaying incorrectly on one domain but not the other

Site URL: http://nmtdominic.squarespace.com

Hello,

My website is showing up incorrectly on my original domain, but properly on the second domain. I recently did an overhaul on my website including purchasing a second domain for it. Now, the new domain shows the updated website correctly, but the original domain is displaying a mix of the old content and the new styles. I'm seeing this error on both mobile and desktop in Safari and Chrome.

How do I reconcile the two domains to display as the correctly updated new site? 

Screenshots: the version using the image with the foot is the correct version and the version with the back massage is the outdated version of the site. 

Hi. Try contacting Squarespace Customer Care first.