SSL Certificate has expired error in Laravel API with Guzzle and can't generate new license using lets encrypt

I have an laravel project configure with docker setup. I notice that my SSL is expired, but I cannot renew my SSL so that I want to have a free SSL license using letsencrypt but I have some issues regarding on my domain name.

When I tried using Lets encrypt I encountered this error:

Guide followed: linode.

I don't know why letsencrypt is not accepting my domain name?

Thanks!

via Chebli Mohamed