Yes, you can. The failure of the company to recieve money owed it, such as under a contract with the state, does not excuse it from its obligation to pay employees. That is the law. Practically, if as a result of the crises, the company is insolvent no money can't pay its bills, then it's possible that even if you sue and win, you won't get anything--a court judgment cannot make money appear where there is none.