Hello,
Thank you for getting back to us.
If Cloudflare nameservers are used for hosted domain names, it is required to change A records for domains and subdomains to the following IP address: in your Cloudflare account settings. Feel free to use this guide for reference: https://support.cloudflare.com/hc/en-us/articles/360019093151-Managing-DNS-records-in-Cloudflare
Please let us know if we can be of any further assistance.
Looking forward to hearing from you.