If you search "english proficiency requirements" along with the name of the university, you should find their page listing the tests and the scores required. Pace asks for a 7.0 in most cases, 6.5 for CS. However, they could admit you still and put you on their English pathway program that calls for extra English classes, so I'd say still consider applying if you're at 6.
Hey there! If you got an admissions offer then I would imagine you've got a login on the Pace applications portal where you might have more details. You could also email Sara and ask. Sometimes there's a small delay between acceptance and receiving scholarship info with the final financial details to get your I-20. But hit up international admissions and ask what's up, they'll get back to you fast.
Then definitely send an email over to the admissions or financial office to see if they're still preparing the offer, they might still be working on it.