Addon will not launch fails to config, below is my buggrabber

224x BigDebuffs/BigDebuffs.lua:2212: attempt to call local 'UnitDebuff' (a nil value)
[string "@BigDebuffs/BigDebuffs.lua"]:2212: in function UNIT_AURA_NAMEPLATE' [string "@BigDebuffs/BigDebuffs.lua"]:2394: in function ?'
[string "@BigDebuffs/Libs/CallbackHandler-1.0-8/CallbackHandler-1.0.lua"]:109: in function <...ffs/Libs/CallbackHandler-1.0/CallbackHandler-1.0.lua:109>
[string "=[C]"]: ?
[string "@BigDebuffs/Libs/CallbackHandler-1.0-8/CallbackHandler-1.0.lua"]:19: in function <...ffs/Libs/CallbackHandler-1.0/CallbackHandler-1.0.lua:15>
[string "@BigDebuffs/Libs/CallbackHandler-1.0-8/CallbackHandler-1.0.lua"]:54: in function `Fire'
[string "@BigDebuffs/Libs/AceEvent-3.0-4/AceEvent-3.0.lua"]:120: in function <BigDebuffs/Libs/AceEvent-3.0/AceEvent-3.0.lua:119>

Locals:
self =

{
HiddenDebuffs = {
}
modules = {
}
baseName = "BigDebuffs"
PriorityDebuffs = {
}
defaultModuleState = true
frames = {
}
hooks = {
}
WarningDebuffs = {
}
enabledState = true
units = {
}
AttachedFrames = {
}
defaultModuleLibraries = {
}
specDispel = {
}
Spells = {
}
name = "BigDebuffs"
specDispelTypes = {
}
Nameplates = {
}
UnitFrames = {
}
db = {
}
orderedModules = {
}
anchors = {
}
}
unit = "nameplate1"
frame = NamePlate1PlaterUnitFrame.BigDebuffs {
anchor = NamePlate1PlaterUnitFrameHealthBar {
}
icon = NamePlate1PlaterUnitFrame.BigDebuffs.Icon {
}
cooldown = NamePlate1PlaterUnitFrame.BigDebuffs.Cooldown {
}
unit = "nameplate1"
}
UnitDebuff = nil
now = 641895.107000
left = 0
priority = 0
duration = nil
expires = nil
icon = nil
debuff = nil
buff = nil
interrupt = nil
(for index) = 1
(for limit) = 40
(for step) = 1
i = 1
(*temporary) = nil
(*temporary) = "nameplate1"
(*temporary) = 1
(*temporary) = "attempt to call local 'UnitDebuff' (a nil value)"
UnitDebuff = nil
LibClassicDurations = false
UnitBuff = nil

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