Why is my website stoped working after I replaced its DNS by Cloudflare?

[chegmarco]

| SYSTEM INFORMATION||
|------------------------------|-------------------------------|
| OS type and version | Ubuntu 20.0.4 |
| Webmin version | 2.101 |
| Virtualmin version | 7.7 |

Hello.

My website was working fine until I changed the DNS settings in my Registar account setup (Namecheap) to the Cloudflare’s DNS information gave me when I added the site to Cloudflare:

And when I try to access it, I got “An error occurred during a connection” as you can see here:

How to fix that error ???
Please help me to fix that.

[vtrh]

Set the ssl in cloudflare to full or strict and it will probably fix it

[chegmarco]

After set SSL/TLS to Full (strict), it works. Thanks