Page Links Not Working

Hello,

When viewing my blog, clicking on a page link (About or Pictures) doesn’t work. It just takes you to an “HTTP 404 Not Found” page. Any ideas? Is more information needed from me?
https://www.dailyamber.com/ is my blog. I just installed it today. I set up 7 categories. The “about” page was already included, and I added the “pictures” page. I can’t think of any other pertinent information. Just let me know.

Thanks in advance,
Amber