Donation Alerts on a Mac with Wirecast

I haven’t been able to figure out how to get donation/follower alerts to appear in Wirecast on my mac. I have the chroma key set up right so the shot is there, but nothing appears on the chroma url when someone donates. I’m obviously missing something big here so can someone please tell me what it is (using a pc isn’t an option).

EDIT: just upgraded to a premier paypal account and it worked. don’t make fun of me.