(The Center Square) – The state commission that manages the Caesars Superdome says the facility’s primary tenant, the NFL’s New Orleans Saints, is behind on its payments for a stadium upgrade project. The team says the commission’s unfulfilled documentation request is the cause. At Wednesday’s monthly meeting of the Louisiana Stadium and Exposition District, staffers told the seven-member board that the team was $11.4 million in arrears toward the ongoing $530 million renovation project for the nearly 49-year-old stadium, which will host next year’s Super Bowl. According to the district staffe…