(SOLVED) Linked pages not showing up

[leeallure]

My website is here: https://leeallure.com/

I just added in the categories block. When the only category there is clicked, this error message comes up:
Not Found

The requested URL /2-premium-dark-side-hypnosis-audio was not found on this server.

Additionally, a 404 Not Found error was encountered while trying to use an ErrorDocument to handle the request.
Apache Server at leeallure.com Port 443

When the search box is used, and I type in "Hypnosis" all the files I offer come up. However, none of the photos
uploaded show up there, and all of the page links also are broken.

There's certainly more not working well right now, but does anyone have answers/help with the above?

Not sure why this happened, but reinstalling worked to fix it.

Thanks,
Lee