The traffic suddenly down problem generate last week.
Last week I was enable Bot traffic and Under attack mode in Cloudflare.
Then my traffic suddenly down.
But I have disabled both Bot traffic and Under attack mode in Cloudflare.
I checked properly all DNS records are properly connected.
host server error 520 (onlyxcodes.com) properly works.
if you type onlyxcodes.com then it will redirect to https://www.onlyxcodes.com/ and open the website properly.
Another thing that may traffic to suddenly down from Google's algorithm
How to recover traffic.