Framework
The Amigos en Cristo website is a Content Management System. This helps it archive content and get search engines to see that content. It looks like Wordpress, just not sure if it's updated.
Mobile-friendly
The website is not mobile-friendly. However, the site blocks Google from assessing how it works. Here's a link to the mobile-friendly test: https://search.google.com/search-console/mobile-friendly?id=G77IXNtvyVaC0_BHQxfw5g , which says the website's Viewport not set, Text too small to read, and Clickable elements too close together
Other issues
Mainly, this is just an old-looking website with a 2012 copyright telling everyone its age that probably needs a new theme is Wordpress.The theme should be mobile-friendly and won't change the basic functionality. If you own this website and have been paying for web maintenance for years, I would demand a basic, mobile-friendly template. If you are now hosting it yourself and unsure how to proceed, Luthernet can help out, too, so go ahead and contact Brian.
A Simplified Guide to Church Websites: Purpose, Planning, and Presentation