WowAce

What version of Grid2  are you using (Version is displayed in General/About Tab) ?

 3.0.12

What game client version, classic or retail, windows or mac and language are you using ?

Retail and Windows in English

What steps will reproduce the problem?

I was doing nothing in Dornogal and all of a sudden i got these errors  

Did you try having Grid2 as the only enabled addon and everything else disabled?

No i didn't all was working as intended.   

Was it working in a previous version? If yes, which was the last good one?

I downloaded a day after patch 12.0 came out

Do you have an error log of what happened? If you don't see any errors, make sure that error reporting is enabled (`/console scriptErrors 1`) or install [BugSack](https://mods.curse.com/addons/wow/BugSack).

Yes here is the log from bugsack 

302x Grid2/GridBlizFramesAuras.lua:147: attempt to get length of local 'aurasFrame' (a nil value)
[Grid2/GridBlizFramesAuras.lua]:147: in function <Grid2/GridBlizFramesAuras.lua:141>
[tail call]: ?
[Grid2/modules/StatusMidnightAuras.lua]:57: in function <Grid2/modules/StatusMidnightAuras.lua:54>
[tail call]: ?
[Grid2/modules/IndicatorIcons.lua]:34: in function <Grid2/modules/IndicatorIcons.lua:21>
[Grid2/modules/IndicatorIcons.lua]:124: in function <Grid2/modules/IndicatorIcons.lua:122>

Locals:
unit = "player"
key = "buffFrames"
filter = "HELPFUL|RAID"
max = 3
sortRule = 3
sortDir = 0
onlyIDs = nil
result = <table> {
}
frame = Button {
otherHealPrediction = Texture {
}
classificationIndicator = Texture {
}
displayAggroHighlight = false
isDead = false
HealthBarsContainer = Frame {
}
castBar = StatusBar {
}
maxDispelDebuffs = 0
displayAggroFlash = false
debuffsChanged = false
SoftTargetFrame = Frame {
}
myHealPrediction = Texture {
}
needsUpdate = false
overHealAbsorbGlow = Texture {
}
totalAbsorbOverlay = Texture {
}
unitExists = true
disableMouse = true
widgetsOnlyMode = false
isPlayer = true
isBehindCamera = false
dispels = <table> {
}
aggroHighlightBase = Texture {
}
isSimplified = false
inDistance = true
aggroHighlightShown = false
healPredictionDirty = false
maxBuffs = 0
PlayerLevelDiffFrame = Frame {
}
unit = "player"
displayedUnit = "player"
isFriend = true
debuffs = <table> {
}
aurasDirty = false
AggroHighlightFadeOutAnim = AnimationGroup {
}
inVehicle = false
behindCameraIcon = Texture {
}
AggroHighlightFadeInAnim = AnimationGroup {
}
optionTable = <table> {
}
AggroHighlightScrollAnim = AnimationGroup {
}
healthBar = StatusBar {
}
displayThreatHealthBarColor = false
totalAbsorb = Texture {
}
aggroFlash = Texture {
}
hideCastbar = false
myHealAbsorbRightShadow = Texture {
}
overAbsorbGlow = Texture {
}
myHealAbsorbLeftShadow = Texture {
}
aggroHighlightMask = MaskTexture {
}
showOnlyName = true
selectionHighlight = Texture {
}
HitTestFrame = Frame {
}
dispelsChanged = false
AurasFrame = Frame {
}
ClassificationFrame = Frame {
}
bigDefensives = <table> {
}
buffs = <table> {
}
isFocus = false
aggroHighlight = Texture {
}
isTarget = false
WidgetContainer = Frame {
}
RaidTargetFrame = Frame {
}
newUnit = true
name = FontString {
}
maxDebuffs = 0
myHealAbsorb = Texture {
}
buffsChanged = false
ignoreCUFNameRequirement = true
LoseAggroAnim = AnimationGroup {
}
isLootObject = false
aggroHighlightAdditive = Texture {
}
}
aurasFrame = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = "attempt to get length of local 'aurasFrame' (a nil value)"
resultTable = <table> {
}
unit2frame = <table> {
player = Button {
}
}

You can try out version 3.0.13-beta

I will try the beta and will bring in feedback.