Your squat looks fundamentally sound. You could probably use to drive your knees out a little harder on the later reps and keep your chin down a bit on the way up. Otherwise, there is nothing to complain about here. I suspect that a slight reset is in order. Doesn't have to be a big one, but you lost momentum and got sick. Feel better. Take some weight off the bar, and Over the next five or six workouts, work back up to where you were. If you hit a wall, then it is probably time to move on from the LP.