...takes me to an error message. Am I set up incorrectly somehow to be able to go to the linked sites?

I went to upgrade the site. Something broke, ran out of time, have been busier than a one armed paperhanger plus had access only to snail paced 'net. In other words, it's not your setup, the site's broken. :( However, I'm back "home" now and hopefully will get caught up quickly and be able to address the matter.