Let's encrypt on AWS EC2 failed to connect

My domain is: fitmeal.fr

I ran this command: ./letsencrypt-auto

It produced this output: Detail: Failed to connect to for TLS-SNI-01 challenge

My operating system is (include version): ubutuntu 16

My web server is (include version): apache

My hosting provider, if applicable, is: AWS EC2

I can login to a root shell on my machine (yes or no, or I don’t know): yes

I’m using a control panel to manage my site (no, or provide the name and version of the control panel): no

I can’t connect to it, either. Connecting to port 80 (HTTP) works. Connecting to port 443 (HTTPS) times out.

Could you check that your EC2 security groups, and any firewall software installed on the instance, allow port 443?

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