Hosting outside Cloudflare

Im hosting a website outside Cloudflare, but since I try to point the DNS servers to my host IP I get
1016. Im guessing the old Hosting provider have Cloudflare account.

Maybe you know what to do in this case without using Cloudflare solutions.

thanks in advance.

I mean 1016 Error from Cloudflare.

If you are not using Cloudflare for your website, then you need to contact your hosting provider

We are the new hosting provider we own the new hosting server and nameserver is pointing correctly to our IP but we still see

I wrote to Cloudflare support and They solve this issue.