Hi @NoelAltoro ...
Sorry to hear about the troubles with your course. Unfortunately, for questions like this, you're going to need to reach out to your instructor for assistance. Although we'd love to help, we here in the Canvas Community website don't have access to your school's Canvas environment or any of your Canvas courses, so it's a bit difficult to help troubleshoot this. One possibility is that your instructor may have copied content incorrectly from one course to another. This sometimes happens with instructors, and they think that copying/pasting images and or links from one course to another is the proper way to add content to the course. In reality, there are other better methods available to instructors to ensure that content is linked and/or embedded properly so that students can view the content without issue. If this happens, from the instructor side, everything appears correctly...because the instructor has access to both courses. But from the student side, it's a whole other story...where students cannot see the content because the links are not available to you (for past courses that you were not enrolled in). Now, I'm not saying this was exactly the issue or situation with your course, but it's a possibility. All this being said, I'd highly recommend that you reach out to your instructor a.s.a.p. to let him/her know of the issue you are having. You can even reference our discussion here...as maybe this will help, in some way, to identify the issue on the instructor's end. To contact your instructor, you can use the "Help" menu on the left-hand global navigation menu of your Canvas environment, and then select "Ask Your Instructor a Question". How do I get help with Canvas?
Good luck to you! Keep us posted!