Domain forwarding: not working on Google

I have set up a forwarder on my domain to go to one of my social media profiles.

This works fine if I visit my domain directly e.g., but if I search my name in Google and find my domain that way, I get a This site can’t be reached error when I visit the page.

I think Google is displaying a https:// link in its results. If I change the URL in my browser to http:// then the link works fine and it sends me to my social media page.

I’m managing my domain in 123-Reg, but I see no option in the web forwarders section to choose between http and https?