Website not working Error 525

Website not working. Shows Host Error. Spoke to hosting site they said the DNS has third party nameserver which is creating an issue so I need to speak with Cloudflare. What do i do?

Requests to that website get redirected to HTTPS. Was your site using HTTPS before you added it to Cloudflare?

Hi,

Yes I was using HTTPS.

The 525 means the server is no longer presenting a valid SSL certificate for your site. Please review the suggestions in this Community Tip for advice & insight.