My website was working fine a couple hours ago. Now the page is not working fine as I got an error: Connection not secure. My domain is active and I do not see anything “pending”.
May I ask you to post and share your domain name in bracketed dot [.] notation here and URL example with us so we could double-check, troubleshoot and provide some feedback information?
Before moving to Cloudflare, was your Website working over HTTPS connection?
May I ask what SSL option have you got selected under the SSL/TLS tab at Cloudflare dashboard for your domain ( Flexible, Full, Full Strict … )?
May I ask have you tried using a different Web browser, or tried clearing your Web browser cache?
How about using a Private window (Incognito mode) or a VPN connection if possible?
Is it the same behaviour on your mobile phone (4G LTE, mobile data, cellular)?