I would expect the second year module to count towards your second-year mark. It sounds like they've counted it against the third-year mark instead.
I suspect this is an administrative error that can be fixed. (And if your course is affected by the marking and assessment boycott, the admin staff will probably be swamped with additional work, and it may be that they've slipped up here.)
You do need to query this, and hopefully it will be straightforward to get sorted.