@Stephklynn ...
I'm not exactly sure what you mean by "class code". Are you just looking for a class within Canvas that you enrolled in at your school? If so, you might want to check your "Courses" >> "All Courses" screen in Canvas.
How do I view all my Canvas courses as a student?
If you see your course listed there, it may be published or not published. If the course isn't published yet, then you and your classmates wouldn't be able to access the content until your instructor publishes the course.
If you do not see your course listed on the "All Courses" screen at all, then you will need to reach out to your school's Online Learning / eLearning / Distance Education department. Someone there should be able to help troubleshoot this issue with you further. I navigated around Seminole State College's website, and I found the following page for you which has some good information as well as some contact information at the bottom of the page:
Seminole Online - Seminole State College
I hope this all will be helpful to you. Good luck with your discussions.