what does this mean? What should I do?
This can happen if you take care of the pet in the pet fence (give gifts such as food, toys to pets that are on the pet fence). it can also be caused because you are planting plants in pots or plants have full grown.
the solution or how to fix it is to harvest all plants in the pots, and also wait for the pet in pet febce to finish the treatment.
make sure there are no pets and plants that are still in the treatment process.