means any debt arising from any cause of action—
(a) | which arises from delictual, contractual or any other liability, including a cause of action which relates to or arises from any— |
(i) | act performed under or in terms of any law; or |
(ii) | omission to do anything which should have been done under or in terms of any law; and |
(b) | for which an organ of state is liable for payment of damages, |
whether such debt became due before or after the fixed date;