Nebraska Revised Statute 21-132
Liability for contributions.
(RULLCA 403) (a) A person's obligation to make a contribution to a limited liability company is not excused by the person's death, disability, or other inability to perform personally. If a person does not make a required contribution, the person or the person's estate is obligated to contribute money equal to the value of the part of the contribution which has not been made, at the option of the company.
(b) A creditor of a limited liability company which extends credit or otherwise acts in actual reliance on an obligation described in subsection (a) of this section may enforce the obligation.