So, I can see a number of posts of people having similar problems but the solutions thus far haven't worked for me.
I've got a site hosted on our Virtualmin instance running on a server hosted in our datacenter.
The HTTP & HTTPS sites work without issue internally but externally it appears that Cloudflare isn't passing the LetsEncrypt certificate through meaning that only the HTTP site doesn't return an error.
I can see the options in the Cloudflare Dashboard 'SSL/TLS' which I'm assuming that is the 'Crypo' section referred to in other forum posts.
Can someone point me in the right direction as I'm currently drawing a blank?
Is it the 'Origin Certificates'? If so how and where do I put them?
Thanks in advance.