I'm building an app for my company and tried to make it integrate with Xero.
I have put in all the environmental variables as well as set up in the developer portal. But whenever I click Connect to Xero from my admin dashboard, this shows up:

https://v0-order-forecast-application.vercel.app/admin/
This is the link of the app and you can go in to try I'm not sure what i'm missing here. Any help will be great
