Broken Category Links

Hello,

I realized today that all of my category links are broken, and I’m at a loss as to why.

A few weeks ago, I changed the permalink structure of my posts from p=xxx to yyyy/mm/postname, so I’m guessing that has something to do with it.

Here’s an example of one of the broken category links:

http://www.freedomtwentyfive.com/category/money-productivity-entrepreneurship/

And when I browse through my posts, they are all categorized. But when I try to navigate to the actual category archive, I get a 404.

Any ideas how I can fix this? Thanks in advance.

Cheers,

Frost