Fixing Inbound Sales Call Assistant Trigger Configuration Issues

Hey so I have setup an inbound sales call assistant using the following template : https://www.lindy.ai/academy-lessons/inbound-phone-calling-101 However, It appears that the inbound phone calling trigger is not setup properly. When I call the number I get a voice message telling me "This phone number has an invalid trigger configuration. Please check your trigger settings in your Lindy Account" Not sure what I have to do to make it work. I also paid for the phone number (10$) for this month.