Is the University Fellowship just for the first year and then you are back down to normal funding for RA/TAing?
By the way, many professors it seems haven't contacted the applicants who received the fellowship yet. So just because you haven't heard anything doesn't mean you didn't get it, so don't get discouraged. My friend just heard today after contacting the POI, who said he got it and they planned to send out the official letters next week.
I wouldn't be surprised if they change the Economics forum to the Econometrics forum next week, and change the History forum to the East Asian History forum the week after.
Don't worry about it. Think about the hundreds of personal statements they receive written by non-native English speakers. I've seen some with 2 or 3 mistakes in each line before. I doubt they will notice your typo, and even if they do, I guarantee you they won't care.
Most applicants these days are internationals and you couldn't begin to imagine the number of 'typos' normally seen in SoPs. I don't think the AdCom will even notice and if they do they certainly won't care.