LUA 426 error

Hi
Since yesterday i have started receiving the error as shown in the imgur link
I believe because of it my game cannot display clutter and particles properly and because of that in intense fights my fps drops to 3 or 4 fps. This has started happening since yesterday ( 11.26.2015 )
What can i do? This is making my game unplyable at times
http://imgur.com/cGMwdQF ( the image )


EDIT, this is the error that i got when i logged in ( i think there are more but i am not 100% sure )

Spoiler: Show

Date: 2015-11-27 15:02:13
ID: 1
Error occured in: Global
Count: 1
Message: ..\FrameXML\OptionsPanelTemplates.lua line 425:
Usage: VideoOptionsEffectsPanelClutterDensity:SetValue(va lue)
Debug:
[C]: ?
[C]: SetDisplayValue()
..\FrameXML\OptionsPanelTemplates.lua:425:
..\FrameXML\OptionsPanelTemplates.lua:373
[C]: securecall()
..\FrameXML\OptionsPanelTemplates.lua:353: BlizzardOptionsPanel_OnEvent()
..\FrameXML\VideoOptionsPanels.lua:428:
..\FrameXML\VideoOptionsPanels.lua:427
AddOns:
Swatter, v5.8.4723 (CreepyKangaroo)
NPCScan, v3.3.5.5
AckisRecipeList, vv2.01-14-gfc58e9f
Atlas, v1.17.0
AtlasBattlegrounds, v1.17.0
AtlasDungeonLocs, v1.17.0
AtlasOutdoorRaids, v1.17.0
AtlasTransportation, v1.17.0
AtlasLoot, vv5.11.04
AtlasLootFu, vv5.11.04
AucAdvanced, v5.8.4723 (CreepyKangaroo)
AucFilterBasic, v5.8.4723 (CreepyKangaroo)
AucFilterOutlier, v5.8.4723.2531
AucMatchUndercut, v5.8.4723.2531
AucStatHistogram, v5.8.4723 (CreepyKangaroo)
AucStatiLevel, v5.8.4723 (CreepyKangaroo)
AucStatPurchased, v5.8.4723 (CreepyKangaroo)
AucStatSales, v5.8.4723.2842
AucStatSimple, v5.8.4723 (CreepyKangaroo)
AucStatStdDev, v5.8.4723 (CreepyKangaroo)
AucStatWOWEcon, v5.8.4723.2530
AucUtilAHWindowControl, v5.8.4723.3311
AucUtilAppraiser, v5.8.4723.2530
AucUtilAskPrice, v5.8.4723.3175
AucUtilAutoMagic, v5.8.4723.3142
AucUtilCompactUI, v5.8.4723.2530
AucUtilEasyBuyout, v5.8.4723.3583
AucUtilFixAH, v5.8.4723 (CreepyKangaroo)
AucUtilGlypher, v5.8.4723.2545
AucUtilItemSuggest, v5.8.4723.3108
AucUtilPriceLevel, v5.8.4723.2545
AucUtilScanButton, v5.8.4723.2530
AucUtilScanFinish, v5.8.4723.3576
AucUtilScanProgress, v5.8.4723.2530
AucUtilScanStart, v5.8.4723.2530
AucUtilSearchUI, v5.8.4723.3655
AucUtilSimpleAuction, v5.8.4723.4546
AucUtilVendMarkup, v5.8.4723.2530
BeanCounter, v5.8.4723 (CreepyKangaroo)
Carbonite, v3.34
CarboniteTransfer, v1.01
Collectinator, v1.0.4
Configator, v5.1.DEV.278
CrapAway, v
DBMCore, v
Enchantrix, v5.8.4723 (CreepyKangaroo)
EnchantrixBarker, v5.8.4723 (CreepyKangaroo)
Gatherer, v3.1.16
GatherMate, vv.1.25
GearScoreLite, v3x04
HealBot, v3.3.5.4
IgnoreMore, v1.1.0-3.3.5
Informant, v5.8.4723 (CreepyKangaroo)
Overachiever, v0.56
PallyPower, vv3.2.14
Quartz, v3.0.3.1
Recount, v
SlideBar, v5.8.4723 (CreepyKangaroo)
Stubby, v5.8.4723 (CreepyKangaroo)
TellMeWhen, v1.2.5
BlizRuntimeLib_enUS v3.3.5.30300 <logon.warmane.com>
(ck=7bd)

disable any and all addons using GlueXML... or reinstall it... also why did you make this in premium members section? it has nothing to do with being a donor

this started appearing recently. i have not installed any other addons ...

I'd say your game files are corrupted. Maybe your hard disk is fried.