Why doesn't my Non Compliance Notice state what I need to do to rectify the problem?

We received a non compliance notice on our apartment door stating that we were in breach of the lease section "Objectional Conduct". It says we have 21 days to rectify the situation, or be out within 30 days. BUT, it doesn’t say what we are to do to rectify it. Where should we go from [...] http://bit.ly/jUVRx7