Themes LUA error

[Snichy]

Addon Version

0.3.16

World of Warcraft Version

Retail

Describe the bug

Getting the following error (not sure if its this addon or the Betterbag - Themes" plugin?

42x BetterBags/themes/themes.lua:253: attempt to index local 'theme' (a nil value)
[string "@BetterBags/themes/themes.lua"]:253: in function UpdateOpacity' [string "@BetterBags/config/config.lua"]:465: in function setValue'
[string "@BetterBags/forms/layouts/stacked.lua"]:538: in function <BetterBags/forms/layouts/stacked.lua:537>
[string "@BetterBags/core/context.lua"]:164: in function <BetterBags/core/context.lua:162>
[string "=[C]"]: in function SetValue' [string "@BetterBags/forms/layouts/stacked.lua"]:585: in function AddSlider'
[string "@BetterBags/forms/form.lua"]:117: in function AddSlider' [string "@BetterBags/config/config.lua"]:454: in function CreateConfig'
[string "@BetterBags/config/config.lua"]:527: in function OnEnable' [string "@BetterBags/config/plugin.lua"]:28: in function AddPluginConfig'
[string "@BetterBags-Appearances/main.lua"]:304: in function AddAppearancesConfig' [string "@BetterBags-Appearances/main.lua"]:117: in function <BetterBags-Appearances/main.lua:112> [string "=[C]"]: ? [string "@Masque/Libs/AceAddon-3.0-13/AceAddon-3.0.lua"]:66: in function <...aceMasque/Libs/AceAddon-3.0/AceAddon-3.0.lua:61> [string "@Masque/Libs/AceAddon-3.0-13/AceAddon-3.0.lua"]:494: in function InitializeAddon'
[string "@Masque/Libs/AceAddon-3.0-13/AceAddon-3.0.lua"]:619: in function <...aceMasque/Libs/AceAddon-3.0/AceAddon-3.0.lua:611>

Locals:
self =

{
modules = {
}
defaultModuleLibraries = {
}
name = "BetterBags_Themes"
orderedModules = {
}
itemButtons = {
}
defaultModuleState = true
windows = {
}
baseName = "BetterBags"
themes = {
}
enabledState = false
titles = {
}
tabs = {
}
moduleName = "Themes"
sectionFonts = {
}
}
theme = nil
(for state) = {
1 = BetterBagsForm0BetterBags Settings {
}
}
(for control) = 1
_ = 1
frame = BetterBagsForm0BetterBags Settings {
}
sizeInfo = {
itemsPerRow = 7
opacity = 100
scale = 95
columnCount = 3
height = 500
width = 700
}
(*temporary) = {
modules = {
}
defaultModuleState = true
data = {
}
baseName = "BetterBags"
enabledState = true
defaultModuleLibraries = {
}
name = "BetterBags_Database"
orderedModules = {
}
moduleName = "Database"
}
(*temporary) = 0
(*temporary) = 2
(*temporary) = {
itemsPerRow = 7
opacity = 100
scale = 95
columnCount = 3
height = 500
width = 700
}
(*temporary) = 0
(*temporary) = "attempt to index local 'theme' (a nil value)"
db = {
modules = {
}
defaultModuleState = true
data = {
}
baseName = "BetterBags"
enabledState = true
defaultModuleLibraries = {
}
name = "BetterBags_Database"
orderedModules = {
}
moduleName = "Database"
}
const = {
BANK_ONLY_BAGS = {
}
BAG_KIND = {
}
modules = {
}
BANK_TAB = {
}
BANK_BAGS = {
}
BINDING_SCOPE = {
}
BANK_ONLY_BAGS_LIST = {
}
baseName = "BetterBags"
BAG_SUBTYPES = {
}
DATABASE_DEFAULTS = {
}
SECTION_SORT_TYPE = {
}
FORM_LAYOUT = {
}
INVENTORY_TYPE_TO_INVENTORY_SLOTS = {
}
EQUIPMENT_SLOTS = {
}
TRADESKILL_MAP = {
}
name = "BetterBags_Constants"
BRIEF_EXPANSION_MAP = {
}
orderedModules = {
}
EXPANSION_MAP = {
}
defaultModuleState = true
OFFSETS = {
}
ITEM_QUALITY_COLOR = {
}
BINDING_MAP = {
}
ITEM_QUALITY_HIGHLIGHT = {
}
BAG_SUBTYPE_TO_QUALITY = {
}
ITEM_QUALITY_TO_ENUM = {
}
EXPANSION_TYPE = {
}
ITEM_SORT_TYPE = {
}
BACKPACK_BAGS = {
}
BAG_VIEW = {
}
WINDOW_KIND = {
}
defaultModuleLibraries = {
}
ITEM_QUALITY_COLOR_LOW = {
}
BACKPACK_ONLY_BAGS_LIST = {
}
enabledState = false
BACKPACK_ONLY_REAGENT_BAGS = {
}
ACCOUNT_BANK_BAGS = {
}
GRID_COMPACT_STYLE = {
}
MOVEMENT_FLOW = {
}
REAGENTBANK_BAGS = {
}
ITEM_BAG_FAMILY = {
}
ITEM_QUALITY_COLOR_HIGH = {
}
moduleName = "Constants"
BACKPACK_ONLY_BAGS = {
}
}

Steps to reproduce

Appears upon logging in or reloading UI