ELIZABETH, N.J. — On a Sunday in March, the Rev. Canon Andy Moore looked out at the empty back-left pews at St. Elizabeth’s Episcopal Church, which had once been filled with Haitian immigrants. “We pray in a very special way for our Haitians who aren’t here at this service, stricken by fear,” he said, before breaking the Communion wafers. Only a few months earlier, his Haitian parishioners were reviving the aging St. Elizabeth’s, whose choir h…