Status Inactive

I used the code my professor gave us to sign up for the class, but every time I try to access my account it tells me that my status in the class is inactive and that the class is not accessible to me.

I have tried everything on my end that the live chat tech suggested I try but, nothing has worked. I'm two weeks into my course and have not been able to do any work for the class and if this isn't resolved I will start failing the assignments. I would really appreciate any help as I really don't know what my options are anymore.