I checked your site while bypassing Cloudflare (by putting the Website IP in the client area in my computer’s hosts file), and I saw a WordPress database connection error page there.
So I think the issue is that the IP address in Cloudflare’s DNS records is not correct. But I cannot check that myself.
I also see you have three accounts all labelled “HemoTalk”. Please make sure to use the IP address of the account that has “hemotalk.com” in the list of domains.