If you are unable to find a standalone "Death Fix" patch file, users in the Nexus Mods Forums have documented a manual fix using (or xEdit): Load the Mod : Open your load order in SSEEdit .
: Delete these specific animation overrides from the ZaZ plugin to allow the game to revert to its vanilla (working) death behavior.
: The mod is missing proper ragdoll transitions for rabbits ("Hare") and chickens.
: When killed, the animal continues to move or "t-pose" while dead, rather than collapsing. Manual Fix and Procedures
: Find the ZAZ.esm (or related plugin) and navigate to the NPC or Race records.