A financing unit of the Puerto Rican government on Wednesday failed to make a $93.7 million money transfer to service a debt, underscoring recent warnings by Gov. Alejandro García Padilla that the commonwealth, which is seeking a “negotiated moratorium” on its $72 billion of debt, is fast running out of cash.

The unit, the Public Finance Corporation, was created to help with the central government’s chronic budget deficits. It has a little more than $1 billion in outstanding bonds.

The corporation’s bonds are backed by a promise that the Puerto Rican legislature will appropriate the cash needed to pay them down. But officials said that for this fiscal year, which began July 1, lawmakers did not appropriate the funds.

“In accordance with the terms of these bonds, the transfer was not made due to the non-appropriation of funds,” said Melba Acosta Febo, head of the Government Development Bank.