Elsinore Corp. may not make its debt payments.

The gambling concern said its Atlantic hotel-casino in Atlantic City, N.J., continues to have “deteriorating market share and increasing cash flow difficulties,” and the company is negotiating to restructure its public and private debt. As a result, it said, interest on public debt may not be paid Nov. 1 when due. The firm, which said its Nevada operations remain profitable, also reported that Jay A. Pritzker resigned as a director.