I can't get my assistant to properly create a contact in GHL to save my life. I tried it first via API, and then installed the VAPI app in GHL, but now that API key is getting rejected by VAPI in my dashboard with error "The provided credentials are not valid." on top of that, when I've tested the assistant, it doesn't apppear to even attempt a call to GHL, despite the tool being created and guidance added in the instructions. It is calling to Slack just fine. How can I troubleshoot this? https://cdn.discordapp.com/attachments/1228667357849849856/1451000658563174420/Screenshot_2025-12-17_at_17.56.34.png?ex=6944952b&is=694343ab&hm=deacffce063c2d0fcc85d28c47b9631dca17d29860bf6d2728dfd7483f66174a&