I suppose if you were to post a few pictures of the rabbit we could guess the mix of breeds that make up your rabbit. But to be technically accurate your rabbit is probably not any breed of rabbit. To be technically accurate a rabbit in the USA is a hotot if the ARBA accepts it as hotot based on the ARBA standards. If a rabbit has not been judged by the ARBA it is only a rabbit that is like a hotot. Even if both parents of a rabbit are registered hotot the offspring is not officially hotot until judged by the ARBA.
Mixed breed rabbits are fine here, we do not have a problem with them. Many here find there favorite rabbits to be mixed rabbits. Many years ago when I had rabbits with my neighbor our breeding doe was most likely a French Lop X Californian mix. She was a good mother.