I have my site to be set as full security on the Cloudflare dashboard, but when I go to my site I see that is it not secure but it has a valid certificate. My site is https://qna.sturtz.ml it is only happening on this site. I got an email
Cloudflare has observed issuance of the following certificate for sturtz.ml or one of its subdomains:
Log date: 2020-04-25 17:03:04 UTC
Issuer: CN=Let’s Encrypt Authority X3,O=Let’s Encrypt,C=US
Validity: 2020-04-25 16:03:04 UTC - 2020-07-24 16:03:04 UTC
DNS Names: qna.sturtz.ml
I do not know what it means, can someone help me.