Why am I getting an "Internal Server Error" when I'm accessing Fluther on my laptop?

Over the past couple days, I have encountered this. The first time I thought it was a normal random anomaly, the kind you see normally around the interwebs. But it’s happening consistently. I pull up Fluther, click on a link, and it may or may not go to the link. It may just give me the “Internal Server” message. I thought that error came from Fluther’s servers. Am I correct?

It’s an older laptop running Vista, using Google for the browser. Any ideas?