Permalink is different than URL

This is probably a very simple issue, but I’m fairly new to WordPress (and site building, in general). Long story short, I accidentally deleted my site page and had to recover it from the trash. Later, I noticed the site is only showing a few small items from the site. Most of the page is gone.

The page itself is fine. If you preview changes or click the permalink, it looks exactly like it did before. However, when you actually enter the URL, it is not. What could have changed to cause this issue?

Thanks,
Ryan