pulling quay.io/ncigdc/bio-python:3.6 failed in Dockerfile

[wangdi2016]

I am making the docker image using Dockerfile provided. But I got the following error.

[+] Building 1.6s (3/3) FINISHED
=> [internal] load .dockerignore 0.0s
=> => transferring context: 2B 0.0s
=> [internal] load build definition from Dockerfile 0.0s
=> => transferring dockerfile: 498B 0.0s
=> ERROR [internal] load metadata for quay.io/ncigdc/bio-python:3.6

"quay.io/ncigdc/bio-python:3.6 " is unauthorized. Any ideas?

Thanks