Hi, first time using Planta. I got the app mainly to help my poor Yucca. It was doing so well for so many years and then I fear I over watered it. The top leaves have slowly turned spindly, turned brown and died. One of the 3 trunks has become soft and squishy, and the leaves have gone the same way as the top ones. The leaves in the middle from the 3rd trunk still look very healthy and continue to grow. I'm concerned that, whatever the issue is, will eventually reach them. I have stopped watering for a month or so and tried to put in more sunlit areas. No improvements. Please help.