"Older Posts" link is broken on front page

The page with the problem is this one:
http://planfund.org/

I am using the Weaver theme and have it set to only display the most recent two blogs on the front page. However, click the link to “older posts” on the bottom left (right above the green footer).

it gets to a broken link to:
http://planfund.org/page/2/

However, if you go to the actual blog:
http://planfund.org/news/

And click on the “older posts” at the bottom, the links works:
http://planfund.org/news/page/2/

any idea how I can fix the “older posts” link on the front page?