I have to delete the CNAME and then it allowed me to create the A Record for www. By the way, why is the default template not use A Record but CNAME. This is confusing for beginners like myself. I would think because CNAME was used then it must be the right way.
Oh because I created the ssl certificate so many times now I have to wait a week before I can create it again. I am stuck for 7 days. A big lesson not to use the auto ssl option when creating new domain. Editing DNS with all the correct records first before create ssl cert.