With insurmountable debts owed to distributors and suppliers, and a staff of four (including a dishwasher who doubles on salads), The Church Key, which opened its doors in 2013, is now faced with the challenge of reinventing itself from its push-cart gimmick of “New American” fare like Ruben Empanadas and salute to the 1980s Crab Meat Crepe to something that will hopefully bring in a newer, younger crowd.