You should consult with a local accountant/attorney who may be able to play intermediary. Unfortunately, when closing an LLC, many states can and will demand the payment of monies that may not have been paid previously. That being said perhaps a settlement can be had given the fact the LLC was not operating for several years.
I hope this helps.
Disclaimer: This answer is for informational purposes only and does not constitute general or specific legal advice, nor create an attorney client relationship.