Can't send events to Google Analytics

Hello guys!

I'm using your plugin with Universal Analytics enabled.
The problem is that I can't send custom events (like submitting a form) to Google Analytics - probably because of the gaplusu object.

I'm trying to it like Google Docs say:
ga('send', 'event', 'Videos', 'play', 'Fall Campaign');

But the object ga doesn't exist.

So I tried:
gaplusu('send', 'event', 'Videos', 'play', 'Fall Campaign');

But it still doesn't work.
Please advice.