What steps will reproduce the problem?

1. Enable UI beautification. Open the DBM plug-in

What version of ShestakUI are you using? (Stating 'latest' is not useful)

2.1.4

Do you have an error log of what happened?

5x ShestakUI/Modules/Skins/DBM.lua:178: attempt to index field 'DBM_GUI_OptionsFrameHeader' (a nil value)
[string "@ShestakUI/Modules/Skins/DBM.lua"]:178: in function <ShestakUI/Modules/Skins/DBM.lua:15>
[string "=[C]"]: in function LoadAddOn' [string "@DBM-Core/DBM-Core.lua"]:2333: in function LoadGUI'
[string "@DBM-Core/modules/Commands.lua"]:470: in function ?' [string "@FrameXML/ChatFrame.lua"]:4975: in function ChatEdit_ParseText'
[string "@FrameXML/ChatFrame.lua"]:4638: in function ChatEdit_SendText' [string "@FrameXML/ChatFrame.lua"]:4674: in function ChatEdit_OnEnterPressed'
[string "*ChatFrame.xml:121_OnEnterPressed"]:1: in function <[string "*ChatFrame.xml:121_OnEnterPressed"]:1>

Locals:
(*temporary) = nil
(*temporary) = nil
(*temporary) = "OnShow"
(*temporary) = defined @ShestakUI/Modules/Skins/DBM.lua:177
(*temporary) = true
(*temporary) = nil
(*temporary) = 0
(*temporary) =
(*temporary) = 1
(*temporary) = "attempt to index field 'DBM_GUI_OptionsFrameHeader' (a nil value)"
backdrop =

{
insets = {
}
bgFile = "Interface\AddOns\ShestakUI\Media\Textures\White.tga"
}
C = {
nameplate = {
}
stats = {
}
general = {
}
loot = {
}
aura = {
}
toppanel = {
}
threat = {
}
pulsecooldown = {
}
enemycooldown = {
}
tooltip = {
}
raidframe = {
}
announcements = {
}
unitframe = {
}
trade = {
}
raidcooldown = {
}
media = {
}
combattext = {
}
minimap = {
}
automation = {
}
skins = {
}
reminder = {
}
filger = {
}
togglemainmenu = {
}
category = "general"
toggleaddons = {
}
normal_font = {
}
bag = {
}
toggleprefix = {
}
options = {
}
filger_spells = {
}
chat = {
}
actionbar = {
}
font = {
}
unitframe_class_bar = {
}
position = {
}
misc = {
}
}
T = {
CalculateMoverPoints = defined @ShestakUI/Core/Functions.lua:210
class = "PRIEST"
RaidBuffs = {
}
dummy = defined @ShestakUI/Core/Constants.lua:6
white_list = {
}
TBC = false
IsFramePositionedLeft = defined @ShestakUI/Core/Functions.lua:236
MoverFrames = {
}
PostUpdateRaidHealth = defined @ShestakUI/Modules/UnitFrames/Functions.lua:212
ShiftBarUpdate = defined @ShestakUI/Modules/ActionBars/Core.lua:546
merge = {
}
CheckPlayerBuff = defined @ShestakUI/Core/Functions.lua:144
UpdateManaLevel = defined @ShestakUI/Modules/UnitFrames/Functions.lua:438
SkinIconBorder = defined @ShestakUI/Core/API.lua:1132
ShortValue = defined @ShestakUI/Core/Functions.lua:15
Role = "Healer"
CurrentProfile = defined @ShestakUI/Core/Functions.lua:248
HideAuraFrame = defined @ShestakUI/Modules/UnitFrames/Functions.lua:659
SkinDropDownBox = defined @ShestakUI/Core/API.lua:726
GetSpecializationRole = defined @ShestakUI/Core/Classic.lua:39
BuffWhiteList = {
}
SkinFrame = defined @ShestakUI/Core/API.lua:1094
ReplaceIconString = defined @ShestakUI/Core/API.lua:1162
CreateAuraWatch = defined @ShestakUI/Modules/UnitFrames/Functions.lua:915
UpdateThreat = defined @ShestakUI/Modules/UnitFrames/Functions.lua:880
Hider = Frame {
}
ABItems = {
}
healfilter = {
}
CreateAuraTimer = defined @ShestakUI/Modules/UnitFrames/Functions.lua:726
SkinFuncs = {
}
Vanilla = false
oUF_colors = {
}
SkinTab = defined @ShestakUI/Core/API.lua:545
BuffBlackList = {
}
SkinRotateButton = defined @ShestakUI/Core/API.lua:686
ArenaControl = {
}
SkinScrollBar = defined @ShestakUI/Core/API.lua:426
race = "Scourge"
PostUpdateRaidHealthColor = defined @ShestakUI/Modules/UnitFrames/Functions.lua:190
ReminderCasterBuffs = defined @ShestakUI/Config/Filters_Wrath/Reminders.lua:139
DebuffWhiteList = {
}
client = "zhCN"
enemy_spells = {
}
Hardcore = false
SoD = false
AnnounceBots = {
}
SkinIconSelectionFrame = defined @int

Any additional information? (example: WoW language if not English) (Attach screenshots here if available, do not link externally)