Unable to fetch updates due to error JSON object must be str, bytes or bytearray, not 'NoneType'

Issue

• yum is failing with below error:

  Updating Subscription Management repositories.
  Traceback (most recent call last):
  File "/usr/lib/python3.6/site-packages/dnf/plugin.py", line 107, in _caller
  getattr(plugin, method)()
  File "/usr/lib/python3.6/site-packages/dnf-plugins/amazon-id.py", line 111, in config
  aws_region = json.loads(id_doc)['region']
  File "/usr/lib64/python3.6/json/__init__.py", line 348, in loads
  'not {!r}'.format(s.__class__.__name__))
  TypeError: the JSON object must be str, bytes or bytearray, not 'NoneType'
  

• Unable to perform yum update on RHEL system built using AWS RHEL image.