A cast bar addon I use broke with the patch so I moved the in-game cast bar into place and this error came up afterward.

1x EditModeExpanded/EditModeExpanded.lua:471: attempt to concatenate field 'systemName' (a nil value)
[string "@EditModeExpanded/EditModeExpanded.lua"]:471: in function <EditModeExpanded/EditModeExpanded.lua:470>
[string "=[C]"]: in function `UpdateSettings'
[string "@EditModeExpanded/libs/EditModeExpanded-1.0-60/EditModeExpanded-1.0.lua"]:143: in function <...d/libs/EditModeExpanded-1.0/EditModeExpanded-1.0.lua:142>
[string "=[C]"]: ?

Locals:
self = Frame {
IsLayoutFrame = defined @SharedXML/LayoutFrame.lua:36
MarkDirty = defined @SharedXML/LayoutFrame.lua:99
Border = Frame {
}
GetSettingPool = defined @EditModeExpanded/libs/EditModeExpanded-1.0/EditModeExpanded-1.0.lua:913
OnCleaned = defined @SharedXML/LayoutFrame.lua:123
OnKeyDown = defined @FrameXML/EditModeDialogs.lua:310
OnUpdate = defined @SharedXML/LayoutFrame.lua:93
GetAdditionalRegions = defined @SharedXML/LayoutFrame.lua:85
UpdateSizeAndAnchors = defined @EditModeExpanded/libs/EditModeExpanded-1.0/EditModeExpanded-1.0.lua:751
OnShow = defined @SharedXML/LayoutFrame.lua:32
Buttons = Frame {
}
OnDragStop = defined @FrameXML/EditModeDialogs.lua:332
dirty = false
OnSettingInteractEnd = defined @FrameXML/EditModeDialogs.lua:476
UpdateButtons = defined @FrameXML/EditModeDialogs.lua:447
0 =
ReleaseAllNonSliders = defined @FrameXML/EditModeDialogs.lua:375
UpdateSettings = defined =[C]:-1
MarkClean = defined @SharedXML/LayoutFrame.lua:114
pools =

{
}
widthPadding = 40
Settings = Frame {
}
AttachToSystemFrame = defined =[C]:-1
Title = FontString {
}
GetLayoutChildren = defined @SharedXML/LayoutFrame.lua:73
heightPadding = 40
OnDragStart = defined @FrameXML/EditModeDialogs.lua:328
ReleaseNonDraggingSliders = defined @EditModeExpanded/libs/EditModeExpanded-1.0/EditModeExpanded-1.0.lua:924
onCloseCallback = defined @EditModeExpanded/libs/EditModeExpanded-1.0/EditModeExpanded-1.0.lua:958
IsDirty = defined @SharedXML/LayoutFrame.lua:119
OnLoad = defined @EditModeExpanded/libs/EditModeExpanded-1.0/EditModeExpanded-1.0.lua:957
OnHide = defined @FrameXML/EditModeDialogs.lua:303
Layout = defined @SharedXML/LayoutFrame.lua:351
AddLayoutChildren = defined @SharedXML/LayoutFrame.lua:55
RevertChanges = defined @FrameXML/EditModeDialogs.lua:485
OnSettingValueChanged = defined @EditModeExpanded/libs/EditModeExpanded-1.0/EditModeExpanded-1.0.lua:944
CloseButton = Button {
}
UpdateDialog = defined @FrameXML/EditModeDialogs.lua:358
OnKeyUp = defined @FrameXML/EditModeDialogs.lua:322
MarkIgnoreInLayout = defined @SharedXML/LayoutFrame.lua:44
OnSettingInteractStart = defined @FrameXML/EditModeDialogs.lua:467
UpdateExtraButtons = defined @EditModeExpanded/libs/EditModeExpanded-1.0/EditModeExpanded-1.0.lua:763
IgnoreLayoutIndex = defined @SharedXML/LayoutFrame.lua:347
}
frame = PlayerCastingBarFrame {
0 =
InterruptSparkAnim = AnimationGroup {
}
GetEffectiveType = defined @FrameXML/CastingBarFrame.lua:172
playCastFX = true
HideSpark = defined @FrameXML/CastingBarFrame.lua:587
ChargeFlash = Texture {
}
UpdateMagnetismRegistration = defined @FrameXML/EditModeSystemTemplates.lua:654
GetSnapOffsets = defined @FrameXML/EditModeSystemTemplates.lua:532
PlayFadeAnim = defined @FrameXML/CastingBarFrame.lua:635
systemInfo = {
}
StopInterruptAnims = defined @FrameXML/CastingBarFrame.lua:620
IsFrameAnchoredToMe = defined @FrameXML/EditModeSystemTemplates.lua:617
BorderMask = MaskTexture {
}
downKeys = {
}
SetLook = defined @FrameXML/CastingBarFrame.lua:748
UpdateStage = defined @FrameXML/CastingBarFrame.lua:935
resetToDefaultPosition