Many course teams add external resources from outside sites and software providers like DataCamp, Codio, Vocareum, Matlab and others to enhance their course experience.
The edX platform is built so that course teams can easily add on additional learning materials like these. However, since they are not part of the edX platform itself, the edX support team is not able to assist with questions.
If you have any questions regarding these sites or other external software, please post in the course's discussion forum where your course staff can reply. Since these were embedded and configured by your course staff, they will best be able to assist.