Hey, I am watching the AI Receptionist for beginners video and when building the check availability tool and connecting it to n8n I am having a problem. In the prompt given to the AI agent inside n8n I am having an error whenever I try to select the time and put it into the prompt. Does anyone know why this happens and how to solve it? Error is indicated in red in the screenshot. Thank you

Hey guys I'm Jan from Barcelona, Spain but currently living in Illinois, USA. I've been exploring Voice Agents for several weeks now and I built a Voice Agent with make and vapi but i'm struggling to connect it to google calendar so businesses can actually use it. So excited to join this group and learn as much as I can. Thank you