Error on IDP Processing

I am getting this error when I am trying to train the Appian IDP.

[title=Could not perform action, message=Could not perform requested action, verify that the inputs are valid., detail=io.grpc.StatusRuntimeException: PERMISSION_DENIED: The caller does not have permission]

I have uploaded 2 sets of docs in the extraction 1. Valid docs with 20pdfs and Invalid docs with 10 pdfs.

Thanks in advance.