Google sitemap not fetchable since moving to cloudflare

We have recently shifted to cloudflare and although all other things work good, all of a sudden we have started having 3 problems

Google Search Console reports that mydomain .com/sitemap.xml is not fetchable although it is publically accessible on www

We cant open our control panel on port :10000

We cannot SSH our server using domain name, although we can do that using IP address

I have opened a support ticket with Cloudflare helpdesk but no reply from 3 days.

I was wondering what DNS rules I need to add to bypass these 3 challenges???

Thanks for your help