WowAce

Not sure if its ACE Addon or Pet Tracker or both, all on logging in:

error 1:

143x DataStore_Rares/DataStore_Rares.lua:133: attempt to call global 'GetAddOnMetadata' (a nil value)
[string "@DataStore_Rares/DataStore_Rares.lua"]:133: in function <DataStore_Rares/DataStore_Rares.lua:132>
[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]"]: ?
[string "=[C]"]: in function `LoadAddOn'
[string "@PetTracker/addons/main/main.lua"]:29: in function `?'
[string "@PetTracker/libs/WildAddon-1.0-2/WildAddon-1.0.lua"]:20: in function <...dOns/PetTracker/libs/WildAddon-1.0/WildAddon-1.0.lua:18>
[string "@PetTracker/libs/WildAddon-1.0-2/WildAddon-1.0.lua"]:56: in function <...dOns/PetTracker/libs/WildAddon-1.0/WildAddon-1.0.lua:53>
[string "=[C]"]: ?
[string "@Ace3/CallbackHandler-1.0-8/CallbackHandler-1.0.lua"]:19: in function <...Ons/Ace3/CallbackHandler-1.0/CallbackHandler-1.0.lua:15>
[string "@Ace3/CallbackHandler-1.0-8/CallbackHandler-1.0.lua"]:54: in function `Fire'
[string "@Ace3/AceEvent-3.0-4/AceEvent-3.0.lua"]:120: in function <Ace3/AceEvent-3.0/AceEvent-3.0.lua:119>
[string "=[C]"]: ?
[string "=[C]"]: in function `LoadAddOn'
[string "@Blizzard_UIParent/Mainline/UIParent.lua"]:422: in function `UIParentLoadAddOn'
[string "@Blizzard_UIParent/Mainline/UIParent.lua"]:477: in function `CombatLog_LoadUI'
[string "@Blizzard_UIParent/Mainline/UIParent.lua"]:1412: in function <...rfaceBlizzard_UIParent/Mainline/UIParent.lua:1290>
[string "=[C]"]: ?

Locals:
self = <table> {
modules = <table> {
}
defaultModuleLibraries = <table> {
}
name = "DataStore_Rares"
orderedModules = <table> {
}
baseName = "DataStore_Rares"
db = <table> {
}
enabledState = true
RareList = <table> {
}
defaultModuleState = true
}
(*temporary) = nil
(*temporary) = "DataStore"
(*temporary) = "Author"
(*temporary) = "attempt to call global 'GetAddOnMetadata' (a nil value)"
addon = <table> {
modules = <table> {
}
defaultModuleLibraries = <table> {
}
name = "DataStore_Rares"
orderedModules = <table> {
}
baseName = "DataStore_Rares"
db = <table> {
}
enabledState = true
RareList = <table> {
}
defaultModuleState = true
}

Error 2: 

143x ...eDataStore_Keystones/DataStore_Keystones.lua:255: attempt to call global 'GetAddOnMetadata' (a nil value)
[string "@DataStore_Keystones/DataStore_Keystones.lua"]:255: in function <...eDataStore_Keystones/DataStore_Keystones.lua:254>
[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]"]: ?
[string "=[C]"]: in function `LoadAddOn'
[string "@PetTracker/addons/main/main.lua"]:29: in function `?'
[string "@PetTracker/libs/WildAddon-1.0-2/WildAddon-1.0.lua"]:20: in function <...dOns/PetTracker/libs/WildAddon-1.0/WildAddon-1.0.lua:18>
[string "@PetTracker/libs/WildAddon-1.0-2/WildAddon-1.0.lua"]:56: in function <...dOns/PetTracker/libs/WildAddon-1.0/WildAddon-1.0.lua:53>
[string "=[C]"]: ?
[string "@Ace3/CallbackHandler-1.0-8/CallbackHandler-1.0.lua"]:19: in function <...Ons/Ace3/CallbackHandler-1.0/CallbackHandler-1.0.lua:15>
[string "@Ace3/CallbackHandler-1.0-8/CallbackHandler-1.0.lua"]:54: in function `Fire'
[string "@Ace3/AceEvent-3.0-4/AceEvent-3.0.lua"]:120: in function <Ace3/AceEvent-3.0/AceEvent-3.0.lua:119>
[string "=[C]"]: ?
[string "=[C]"]: in function `LoadAddOn'
[string "@Blizzard_UIParent/Mainline/UIParent.lua"]:422: in function `UIParentLoadAddOn'
[string "@Blizzard_UIParent/Mainline/UIParent.lua"]:477: in function `CombatLog_LoadUI'
[string "@Blizzard_UIParent/Mainline/UIParent.lua"]:1412: in function <...rfaceBlizzard_UIParent/Mainline/UIParent.lua:1290>
[string "=[C]"]: ?

Locals:
self = <table> {
modules = <table> {
}
defaultModuleLibraries = <table> {
}
name = "DataStore_Keystones"
orderedModules = <table> {
}
db = <table> {
}
baseName = "DataStore_Keystones"
enabledState = true
defaultModuleState = true
}
(*temporary) = nil
(*temporary) = "DataStore"
(*temporary) = "Author"
(*temporary) = "attempt to call global 'GetAddOnMetadata' (a nil value)"
addon = <table> {
modules = <table> {
}
defaultModuleLibraries = <table> {
}
name = "DataStore_Keystones"
orderedModules = <table> {
}
db = <table> {
}
baseName = "DataStore_Keystones"
enabledState = true
defaultModuleState = true
}

Error 3:

139x DataStore_Rares/DataStore_Rares.lua:125: attempt to call global 'GetAddOnMetadata' (a nil value)
[string "@DataStore_Rares/DataStore_Rares.lua"]:125: in function <DataStore_Rares/DataStore_Rares.lua:121>
[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"]:494: in function `InitializeAddon'
[string "@Ace3/AceAddon-3.0-13/AceAddon-3.0.lua"]:619: in function <Ace3/AceAddon-3.0/AceAddon-3.0.lua:611>

Locals:
self = <table> {
modules = <table> {
}
defaultModuleLibraries = <table> {
}
name = "DataStore_Rares"
orderedModules = <table> {
}
baseName = "DataStore_Rares"
db = <table> {
}
enabledState = true
RareList = <table> {
}
defaultModuleState = true
}
(*temporary) = nil
(*temporary) = "DataStore"
(*temporary) = "Author"
(*temporary) = "attempt to call global 'GetAddOnMetadata' (a nil value)"
addon = <table> {
modules = <table> {
}
defaultModuleLibraries = <table> {
}
name = "DataStore_Rares"
orderedModules = <table> {
}
baseName = "DataStore_Rares"
db = <table> {
}
enabledState = true
RareList = <table> {
}
defaultModuleState = true
}
addonName = "DataStore_Rares"
AddonDB_Defaults = <table> {
global = <table> {
}
}
PublicMethods = <table> {
}

Error 4:

139x ...eDataStore_Keystones/DataStore_Keystones.lua:243: attempt to call global 'GetAddOnMetadata' (a nil value)
[string "@DataStore_Keystones/DataStore_Keystones.lua"]:243: in function <...eDataStore_Keystones/DataStore_Keystones.lua:239>
[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"]:494: in function `InitializeAddon'
[string "@Ace3/AceAddon-3.0-13/AceAddon-3.0.lua"]:619: in function <Ace3/AceAddon-3.0/AceAddon-3.0.lua:611>

Locals:
self = <table> {
modules = <table> {
}
defaultModuleLibraries = <table> {
}
name = "DataStore_Keystones"
orderedModules = <table> {
}
db = <table> {
}
baseName = "DataStore_Keystones"
enabledState = true
defaultModuleState = true
}
(*temporary) = nil
(*temporary) = "DataStore"
(*temporary) = "Author"
(*temporary) = "attempt to call global 'GetAddOnMetadata' (a nil value)"
addon = <table> {
modules = <table> {
}
defaultModuleLibraries = <table> {
}
name = "DataStore_Keystones"
orderedModules = <table> {
}
db = <table> {
}
baseName = "DataStore_Keystones"
enabledState = true
defaultModuleState = true
}
addonName = "DataStore_Keystones"
AddonDB_Defaults = <table> {
global = <table> {
}
}
PublicMethods = <table> {
}