Error when Launching a course

Summary:

Learner receives "not found" error message in new window when launching an eLearning module.

Content (please ensure you mask any confidential information):

After enrolling in an eLearning course, clicking the launch button opens a new window that displays a 'Not Found' error(see attachment).

Has anyone else experienced this issue and if so what was the cause/solution?

Thanks!

Version (include the version you are using, if applicable):

Code Snippet (add any code snippets that support your topic, if applicable):