Pytorch extending container Bug

https://github.com/aws/amazon-sagemaker-examples/blob/master/advanced_functionality/pytorch_extending_our_containers/pytorch_extending_our_containers.ipynb

When I follow your steps exactly in the notebook i get the following error:

"error checking context: 'can't stat '/home/ec2-user/SageMaker/lost+found''.
Error response from daemon: No such image: ......
An image does not exist locally with the tag: ...."

While previous this all worked. Is anything changed?

Open advanced_functionality/pytorch_extending_our_containers/pytorch_extending_our_containers.ipynb and run the notebook steps exactly as reported. Reproduce the context and missing-image errors, then verify that the container workflow completes successfully without those errors.

Written by the indexing model from the issue text.