Multiple Problems with Audio - All of a Sudden!

All of a sudden, my audio has a HUGE delay. Almost 1.5 seconds. This was not happening before. Also… scenes with pre-recorded video have no audio - or very faint and scratchy. The only change made to my system was to uninstall Livestream Studio. Is it possible that they share a driver in common? Everything was working perfectly until today. What might the problem be? Where do I start looking? I have to use the system TOMORROW. Now I seem to be screwed.

My setup is simple: Vixia Camera. Neumann Mic going through Behringer interface.

Once again, this all worked perfectly a few days ago.

Hey there! Can I see what your audio settings look like in Broadcaster? And are you getting audio from an external device or through your PC?