CREATE TABLE table_77797 ("Player" TEXT, "Club" TEXT, "League" FLOAT, "Play-offs" FLOAT, "FA Cup" FLOAT, "FA Trophy" FLOAT, "Total" FLOAT)

Which of the lowest FA Trophys involved the Forest Green Rovers club when the play-offs number was bigger than 0?
SELECT MIN("FA Trophy") FROM table_77797 WHERE "Club" = 'forest green rovers' AND "Play-offs" > '0'
SELECT MIN("FA Trophy") FROM "table_77797" WHERE "Club" = 'forest green rovers' AND "Play-offs" > '0'