Callback URL mismatch. The provided redirect_uri is not in the list of allowed callback URI

[anotherrohit]

I am trying to run this locally, but see the below. I am adding http://localhost:3000/ as my callback URL, I get a 500 error
http://localhost:3000/folder/
Request Method:
GET
Status Code:
500 Internal Server Error (from disk cache)
Remote Address:
[::1]:3000
Referrer Policy:
strict-origin-when-cross-origin
Any idea what is wrong?