Internal Server Error with empty package.json

In this codesandbox: https://codesandbox.io/s/qk0zro1qm4, there is a package.json that when logged in I cannot delete ("Cannot delete package.json") nor edit and save ("Internal Server Error"). The package.json is empty.

When not logged, the empty package.json fails to be parsed: "Cannot read property 'parsed' of undefined"
