Hey ,this isn’t your setup, it’s the Vapi dashboard breaking on that phone number page. That error usually shows up when the form fails to load (bad state, missing config, or a recent update), so you can’t even edit the number. Seen this before: Soltan — dashboard crashed on assistant/number edit → fixed config + rebuilt flow Francis — UI failing + calls stuck → traced to bad state, got everything working again I can help you fix it fast and make sure your number + calls run properly. Quick check: Does it crash every time you open that number? Did you recently change the assistant or config? Are calls still going through? Happy to jump in 👍