Image push fails with error message: "received unexpected HTTP status: 500 Internal Server Error"

Issue

• Following command fails:

$ docker push docker-registry.default.svc:5000/sample-project/httpd:2.4

The push refers to a repository [docker-registry.default.svc:5000/sample-project/httpd]
44ed7688911d: Layer already exists
08d8419f32d3: Layer already exists
3d22795591d6: Layer already exists
44e308587522: Layer already exists
f76459f1b169: Layer already exists
f9c08c247020: Layer already exists
3ebc343c04d8: Layer already exists
d14729e6ca5b: Layer already exists
6f4acc6ac0c0: Layer already exists
received unexpected HTTP status: 500 Internal Server Error