My domain is redirecting to my Yolasite subdomain

My domain is redirecting to my Yolasite subdomain

I follow the steps listed below, but when I click on the "save changes" box, it tells me that an error occurred, and it won't let me actually save the changes, so even though I've purchased a domain name (from another provider) and don't have the "free website" ad, the browser nav bar still lists the sub-domain. Any ideas? Is this a YOLA glitch?

If you've published your site to your own domain and it is redirecting to your Yolasite subdomain, here's how to change it so that the subdomain redirects to your top-level domain:

1. Login to your account on Yola.
2. On the My Sites page, scroll to the bottom and check the box next to "Enable Advanced Domain Settings".
3. Scroll back up to the top and click on the link "Advanced Domain Settings".
4. A new page will open, and you will see a list of domains assigned to your site. To reassign a domain as "Primary Domain", choose which domain you would like to be the Primary domain and click on "Click to Apply Changes".

This will be the canonical (primary) domain and the one the other domains will redirect to.