Call the agency that issued it and verify exactly what it means. It sounds like you have a certain amount of time to get this done or there could be consequences.
Or, you could hire an attorney in this area of the law to handle this for you. I would not wait on this.
Ms. Johns is a lawyer although she is not your lawyer unless you have consulted with her and signed a fee agreement or a letter agreement confirming her office's representation of you. This post does not constitute legal advice and no attorney client relationship results.