You need to stop the dogs from chasing the cats right now. Keep the dogs on a leash or crated when they are inside. Or confine the cats to one area of the house while the dogs are inside. Make sure the cats always have an escape route. Don't leave them unsupervised for a minute.

My dogs killed one of my cats a couple months ago after years of peacefully living together. You don't want to go there. Even in play, a dog can kill a cat with great ease.

And get them all altered so they don't have any more babies.