Navigation Issue

Tell us what’s happening:
I am not able to navigate to next topic and struggling to create work in codepen.io for the package.json

Your code so far

Your browser information:

User Agent is: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/78.0.3904.108 Safari/537.36.

Challenge: undefined

Link to the challenge:
https://www.freecodecamp.org/learn/apis-and-microservices/managing-packages-with-npm/how-to-use-package.json-the-core-of-any-node.js-project-or-npm-package

You can not use Codepen for the backend challenges. You can use Glitch though.