WowAce

When loading the UI the following LUA error occurs:

4x FishingAce/FishingAce.lua:380: Usage: RegisterEvent("eventname", "methodname"): 'methodname' - method 'PLAYER_REGEN_ENABLED' not found on self.
[string "=[C]"]: ?
[string "@Ace3/CallbackHandler-1.0-7/CallbackHandler-1.0.lua"]:107: in function `RegisterEvent'
[string "@FishingAce/FishingAce.lua"]:380: in function <FishingAce/FishingAce.lua:375>
[string "=[C]"]: ?
[string "@Ace3/AceAddon-3.0-13/AceAddon-3.0.lua"]:66: in function <Ace3/AceAddon-3.0/AceAddon-3.0.lua:61>
[string "@Ace3/AceAddon-3.0-13/AceAddon-3.0.lua"]:523: in function `EnableAddon'
[string "@Ace3/AceAddon-3.0-13/AceAddon-3.0.lua"]:626: in function <Ace3/AceAddon-3.0/AceAddon-3.0.lua:611>
[string "=[C]"]: in function `LoadAddOn'
[string "@ArkInventory/Core/ArkInventory.lua"]:11379: in function `LoadAddOn'
[string "@ArkInventory/Core/ArkInventory.lua"]:11395: in function `BlizzardAPIHook'
[string "@ArkInventory/Core/ArkInventory.lua"]:3044: in function <ArkInventory/Core/ArkInventory.lua:3013>
[string "=[C]"]: ?
[string "@Ace3/AceAddon-3.0-13/AceAddon-3.0.lua"]:66: in function <Ace3/AceAddon-3.0/AceAddon-3.0.lua:61>
[string "@Ace3/AceAddon-3.0-13/AceAddon-3.0.lua"]:523: in function `EnableAddon'
[string "@Ace3/AceAddon-3.0-13/AceAddon-3.0.lua"]:626: in function <Ace3/AceAddon-3.0/AceAddon-3.0.lua:611

The only other addons loaded are: Bartender 4, Bazooka, Bug Grabber, Bug Stack and Simple Addon Manager.