Please Help! WP Move Not Working

Hello folks. I’m really hoping that you’ll be able to help me out here as I’m having a hell of a time trying to get my site up and running. I recently moved my site to hoster Ionos. Turns out they don’t offer e-mail support, only over the phone, which really isn’t practical for me (or, I’d imagine, anyone with a job).

I already had a domain with Google (jmdworks.org). After moving the WordPress install, I changed the domain’s Name Servers as Ionos’ instructions dictated. I set up the domain as an “external domain,” which from what I read seemed like the correct way to do it. However, as you can see why visiting the domain I get a ERR_CONNECTION_CLOSED error.

According to my Ionos account, my “Domain connection is being updated.” When looking at the domain in my account it shows a preview of the site as it should look. I’ve also “connected” the domain to the WordPress install via my Ionos account.

However, when I go into the settings of my WP install, it still shows the temporary URL of when I was installing/ testing WP under WordPress Address rather than the URL it should be (which is in Site Address).

I’ve gone through Ionos’ help docs but I haven’t been able to find anything that seems to help. I’m completely stuck with what’s going on here so any advice you have would be greatly appreciated.

Cheers.

The page I need help with: [log in to see the link]