I have created a job in Databricks and configured to use a cluster having single user access enabled and using github as a source. When I am trying to run the job, getting following error-

run failed with error message Unable to access the notebook "databricks/notebooks/loaders/pubsub_streaming". Either it does not exist, or the identity used to run this job, sumit.desai@abc.com (sumit.desai@abc.com), lacks the required permissions.

I have confirmed that the link is correct. What permission might be missing here?