Good evening Matthew and welcome to the Events Calendar Support forum!
Thank you for reaching out to us.
We are sorry to hear about the images not showing up and the format not being as expected.
I would love to help you with this topic.
What is a bit odd is that the https://mattyandamanda.com/events/ URL is not using the Events Calendar at all.
It almost looks like you have set up static pages with that URL (which is incompatible with our plugins).
Short term, could you change the slugs under Events -> Settings -> General for Events URL slug and Single event URL slug to calendar and calendar-page respectively.
Once that is done, please re-save your permalinks and let me know.
Ideally, if there could be a couple of problematic events in place, that would help me troubleshoot better.
Hang in there!
Geoff B.