Actually, do you still have control of the zone there?
You can get the
www record working if you can create a CNAME:
www.av-northern-apps.com. CNAME www.av-northern-apps.com.cdn.cloudflare.net
Technically you can’t do a CNAME at the zone apex (
av-northern-apps.com) but if your provider does ANAME records or can flatten CNAMEs you can do the same there.
That’ll work in 5 minutes.