Getting Origin DNS Error!

Hello everyone. My website is getting frequent error 1016. It’s for a short time and the site gets back to normal working after a few minutes. However, my working on Wordpress is disturbed when this happens, can’t even save things.
I have asked about this from my hosting provider but they found no problem. They told me to connect Cloudfare for this.

Hi @roomantanvir, that zone is on a partial setup with your DNS records hosted elsewhere.
A 1016 (:search: 1016 #CommunityTip) may indicate an issue with a missing/incorrect A record or an issue with your CNAME.