Considering that Fluffball is formed by getting together two words related to cats, some suggestions would be:
- Pawskers (a combination of paws and whiskers)
- Tabbyten (a combination of tabby and kitten)
- Meowlar (a combination of meow and collar)

For the kingdom, you could use one of the words of the cat's name and put a suffix like -land, for example:

- Using the name Pawskers, you could make the kingdom be Whiskerland
spam fails_task lang_mismatch pii not_appropriate hate_speech sexual_content quality toxicity humor helpfulness creativity violence