My Peace Lily was doing great for a while, but then one of the flower's spadix started turning black. At first I thought it was normal but then even the new flowers started turning black until they all died. A few days ago it started completely wilting and going flat. I give it plenty of indirect sunlight and water it whenever the soil feels dry. The pot has drain holes and I have seen a few bugs in the soil before but I don't know what kind they are and if they are harming the plant or not. Is there anything I can do to fix it?