My Old Domain Shows Up When Viewing on Mobile Devices

When I purchased the Enfold theme last year I hired someone to convert/transfer my old site, KaneFitness.com to my new site, VibrantExistence.com. It involved switching to the Enfold theme and saving the old site content to my new blog domain. I have no knowledge of how to do that or what he did but all the content from my old site is there, just like I wanted. It displays fine in a desktop environment, however on a mobile device, when I go to the VibrantExistence.com domain, the address switches automatically to the Kanefitness.com address and does not display in the Enfold theme. Plus it shows some code as well so it’s an ugly UX. Help!!