You probably mean Rastafarian. You can find out more about it with this spelling.
Rastafarianism is a religious movement born out of the black slums of Jamaica which harnessed the teachings of the Jamaican born black nationalist, Marcus Garvey and conditionally uses selective Old Testament Christian writings to support its teachings and practices.
There is no commonly known term "raspotarian." It is possible that it may be a misspelling or a made-up word. If you can provide more context or details, I may be able to help clarify further.