The Cactus Club in Boston’s Back Bay neighborhood has closed. The popular Mexican restaurant’s president, Jim Lifton, told the Globe that the lease expired and they couldn’t come to an agreement to extend it. While the establishment, located on the Boston Marathon route at 939 Boylston St., is closed indefinitely for now, Lifton said they are looking for spaces elsewhere, so there may be another Cactus Club in Boston’s future.