The mouflon will likely not even be there anymore. When the server crashes, wild animals and foragables despawn, so you'll have to find a new one and begin taming anew.
there are methods you can use to not lose an HP at all. trap them in the gate of a round pole fence or a palisade. then hit them with the initiative skills, the intensity reduction skills, and the quell the beast attack.
Want to touch my fibula? Gulgatha, place of the skull.