Permission Denied Error EC2 For LetsEncrpt

Hi! I’m trying to set up rocket chat on AWS EC2. I followed AWS - Rocket.Chat Docs This guide but when I get to the SSL certificate stuff, I keep getting the error of "Timeout during connect (likely a firewall problem). I opened all my EC2 security group ports so I’m not sure why this is happening. If you need more info to help, let me know!

Also, I’m sorry if this belongs in a different area! I think EC2 runs on an ARM chip