Good game, game breaking bug

Its a fun game at first until you hit the glitches that wont let you advance in the story. I have completed the same mission twice which in it requires you to kill 3 bosses with a troop and It didnt complete the quest. I dont know if its just me or if anyone else has this problem but if there are others they know the pain

Fun fighters about Battle Camp - Catch Monsters, v3.9.1