Yes it looks like over watering or not drying out enough in between watering. So let it dry out really well not to the point where it wilts the plant but to where the soil is dry and fell the weight of it and take a mental note of its weight. then give it a watering and feel the weight after you water it take mental note of that also. you can even weigh them to make it more accurate then you can use how heavy it feels to determine to water yet or just looks like it needs water make sense? She should recover no problem👍 just let her dry out and keep good watering schedule/practice Happy Growing an if you have any other ?'s don't hesitate to ask😊