My Peperomia Clusiifolia (Jelly Plant) has been dropping leaves for some time. They seem healthy and okay and then it looks as if the connecting part gets rotten and the leaf falls out of the plant. There’s some dark spots on the leaves, but I thought it’s always had it or is just dust. Could it be something else? I can’t see them moving or anything. There was a small spider on it once, but it’s been eliminated. No bugs seen on it since. What is the problem and what do i do with it?