WordPress web problem

There are 101 subscribers to the Indiana Lincoln HIghway Association website. When you get an e-mail from the website it means that a new entry has been posted on the Blog / News page. For some reason the first link on the e-mails for the blog title does not work. To go to the page just use:
http://indianalincolnhighway.org/blog-news
or click on the Categories link at the bottom of the email,
or click on our homepage and use the menu bar underneath the picture:
http://indianalincolnhighway.org/
Sorry for any inconvenience. Any WordPress experts out there?