Class color Health bars not working

[AznMyztik]

Whenever I click it in the options it doesn't toggle the option. It just stays unclicked.
Here's the error I get.

58x ...rfacenibRealUI\HuD\UnitFrames\UnitFrames.lua:412: attempt to call method 'RefreshUnits' (a nil value)
...rfacenibRealUI\HuD\UnitFrames\UnitFrames.lua:412: in function `ToggleClassColoring'
...acenibRealUI\Config\ConfigBar\Appearance.lua:205: in function `func'
nibRealUI\Config\ConfigBar\GUI.lua:301: in function <nibRealUI\Config\ConfigBar\GUI.lua:299>

Locals:
UnitFrames = <table> {
 SetDefaultModuleLibraries = <function> defined @Masque\Libs\AceAddon-3.0\AceAddon-3.0.lua:398
 Enable = <function> defined @Masque\Libs\AceAddon-3.0\AceAddon-3.0.lua:325
 UnregisterAllEvents = <function> defined @Masque\Libs\CallbackHandler-1.0\CallbackHandler-1.0.lua:202
 PowerOverride = <function> defined @nibRealUI\HuD\UnitFrames\Shared.lua:267
 EnableModule = <function> defined @Masque\Libs\AceAddon-3.0\AceAddon-3.0.lua:363
 modules = <table> {
 }
 GetModule = <function> defined @Masque\Libs\AceAddon-3.0\AceAddon-3.0.lua:241
 IterateEmbeds = <function> defined @Masque\Libs\AceAddon-3.0\AceAddon-3.0.lua:473
 target = <function> defined @nibRealUI\HuD\UnitFrames\Units\Target.lua:306
 defaultModuleLibraries = <table> {
 }
 GetName = <function> defined @Masque\Libs\AceAddon-3.0\AceAddon-3.0.lua:310
 textures = <table> {
 }
 ToggleClassColoring = <function> defined @nibRealUI\HuD\UnitFrames\UnitFrames.lua:406
 PowerColors = <table> {
 }
 OnInitialize = <function> defined @nibRealUI\HuD\UnitFrames\UnitFrames.lua:447
 db = <table> {
 }
 baseName = "nibRealUI"
 SetDefaultModulePrototype = <function> defined @Masque\Libs\AceAddon-3.0\AceAddon-3.0.lua:440
 pet = <function> defined @nibRealUI\HuD\UnitFrames\Units\Pet.lua:113
 ReversePowers = <table> {
 }
 player = <function> defined @nibRealUI\HuD\UnitFrames\Units\Player.lua:253
 name = "nibRealUI_UnitFrames"
 focustarget = <function> defined @nibRealUI\HuD\UnitFrames\Units\FocusTarget.lua:116
 IsEnabled = <function> defined @Masque\Libs\AceAddon-3.0\AceAddon-3.0.lua:482
 orderedModules = <table> {
 }
 focus = <function> defined @nibRealUI\HuD\UnitFrames\Units\Focus.lua:124
 DisableModule = <function> defined @Masque\Libs\AceAddon-3.0\AceAddon-3.0.lua:381
 PredictOverride = <function> defined @nibRealUI\HuD\UnitFrames\Shared.lua:241
 AbrvName = <function> defined @nibRealUI\HuD\UnitFrames\UnitFrames.lua:376
 InitializeLayout = <function> defined @nibRealUI\HuD\UnitFrames\Shared.lua:461
 OnEnable = <function> defined @nibRealUI\HuD\UnitFrames\UnitFrames.lua:563
 RegisterMessage = <function> defined @Masque\Libs\CallbackHandler-1.0\CallbackHandler-1.0.lua:118
 UnregisterMessage = <function> defined @Masque\Libs\CallbackHandler-1.0\CallbackHandler-1.0.lua:181
 SendMessage = <function> defined @Masque\Libs\CallbackHandler-1.0\CallbackHandler-1.0.lua:87
 UpdateClassification = <function> defined @nibRealUI\HuD\UnitFrames\Shared.lua:294
 PvPOverride = <function> defined @nibRealUI\HuD\UnitFrames\Shared.lua:276
 GetPowerColors = <function> defined @nibRealUI\HuD\UnitFrames\UnitFrames.lua:419
 HealthOverride = <function> defined @nibRealUI\HuD\UnitFrames\Shared.lua:233
 IsModule = <function> defined @Masque\Libs\AceAddon-3.0\AceAddon-3.0.lua:248
 UpdateEndBox = <function> defined @nibRealUI\HuD\UnitFrames\Shared.lua:355
 SetDefaultModuleState = <function> defined @Masque\Libs\AceAddon-3.0\AceAddon-3.0.lua:418
 layoutSize = 2
 GetStatusColors = <function> defined @nibRealUI\HuD\UnitFrames\UnitFrames.lua:423
 SetEnabledState = <function> defined @Masque\Libs\AceAddon-3.0\AceAddon-3.0.lua:455
 GetHealthColor = <function> defined @nibRealUI\HuD\UnitFrames\UnitFrames.lua:415
 enabledState = true
 SetPowerColors = <function> defined @nibRealUI\HuD\UnitFrames\UnitFrames.lua:390
 RegisterEvent = <function> defined @Masque\Libs\CallbackHandler-1.0\CallbackHandler-1.0.lua:118
 UnregisterAllMessages = <function> defined @Masque\Libs\Callb

[Gethe]

This will be fixed in the next update.