It might be because of the wrong food.
If you feed Garfield the wrong food, such as poor-quality or unclean food, it may experience soft stools, diarrhea, vomiting, or other problems. The owner should immediately stop feeding Garfield the inappropriate food and offer it some warm water, temporarily stopping its main meals.
Sometimes cat owners may like to share food with their Garfield cats, but if they eat too much, the Garfield cat may experience physical discomfort. Therefore, owners should try to prevent their cats from eating random things. 
If a Garfield cat gets chilled, it may experience loose stools. Similar to humans, Garfield cats are more prone to catching a chill when the weather turns cold or when there are large temperature differences. If your Garfield cat exhibits symptoms such as sneezing, runny nose, and loose stools, remember to prepare warm blankets for it, or place it in a warm room. If necessary, you can dress it in a sweater.
Perhaps not adapted to the environmentIf you've just brought your Garfield home or moved to a new house, it might struggle to adapt to its new environment. Its physical condition can be affected by its mood, potentially leading to issues like loose stools. Try distracting it with treats or toys to calm it down. Once it's settled in a bit, you can introduce larger toys. With a happy and supportive lifestyle, Garfield will gradually adjust to its new surroundings.
