A few errors on the latest version of Season of Discovery.
Following two are on login.

1x alaTradeSkill/ui.lua:4869: attempt to index field 'Text' (a nil value)
[string "=[C]"]: ?
[string "@alaTradeSkill/init.lua"]:267: in function `SafeCall'
[string "@alaTradeSkill/ui.lua"]:6059: in function <alaTradeSkill/ui.lua:6044>
[string "=[C]"]: ?
[string "@alaTradeSkill/init.lua"]:557: in function <alaTradeSkill/init.lua:544>

1x alaTradeSkill/ui.lua:5604: attempt to call global 'InterfaceOptions_AddCategory' (a nil value)
[string "=[C]"]: ?
[string "@alaTradeSkill/init.lua"]:267: in function `SafeCall'
[string "@alaTradeSkill/ui.lua"]:6060: in function <alaTradeSkill/ui.lua:6044>
[string "=[C]"]: ?
[string "@alaTradeSkill/init.lua"]:557: in function <alaTradeSkill/init.lua:544>

Next two are when opening the profession window, in this case enchanting.
1x alaTradeSkill/ui.lua:3611: attempt to index field 'Text' (a nil value)
[string "@alaTradeSkill/ui.lua"]:4334: in function <alaTradeSkill/ui.lua:4140>
[string "=[C]"]: ?
[string "@alaTradeSkill/init.lua"]:267: in function SafeCall' [string "@alaTradeSkill/init.lua"]:577: in function <alaTradeSkill/init.lua:544> [string "=[C]"]: ? [string "=[C]"]: ? [string "=[C]"]: in function LoadAddOn'
[string "@Blizzard_UIParent/Vanilla/UIParent.lua"]:225: in function UIParentLoadAddOn' [string "@Blizzard_UIParent/Vanilla/UIParent.lua"]:248: in function CraftFrame_LoadUI'
[string "@Blizzard_UIParent/Vanilla/UIParent.lua"]:1004: in function <Blizzard_UIParent/Vanilla/UIParent.lua:494>

Locals:
addon = "BLIZZARD_CRAFTUI"
CraftFrame = CraftFrame {
Frame = Frame {
}
}
CraftFramePortrait = CraftFramePortrait {
}
CraftFrameCloseButton = CraftFrameCloseButton {
}
CraftRankFrame = CraftRankFrame {
Border = CraftRankFrameBorder {
}
}
CraftRankFrameBorder = CraftRankFrameBorder {
}
CraftFrameAvailableFilterCheckButton = nil
CraftFrameFilterDropDown = nil
CraftListScrollFrame = CraftListScrollFrame {
ScrollBar = CraftListScrollFrameScrollBar {
}
offset = 0
ScrollChildFrame = CraftListScrollFrameScrollChildFrame {
}
}
CraftListScrollFrameScrollBar = CraftListScrollFrameScrollBar {
ThumbTexture = CraftListScrollFrameScrollBarThumbTexture {
}
ScrollUpButton = CraftListScrollFrameScrollBarScrollUpButton {
}
ScrollDownButton = CraftListScrollFrameScrollBarScrollDownButton {
}
}
CraftHighlightFrame = CraftHighlightFrame {
}
CraftDetailScrollFrame = CraftDetailScrollFrame {
ScrollBar = CraftDetailScrollFrameScrollBar {
}
offset = 0
scrollBarHideable = 1
}
CraftDetailScrollChildFrame = CraftDetailScrollChildFrame {
}
CraftDetailScrollFrameScrollBar = CraftDetailScrollFrameScrollBar {
ThumbTexture = CraftDetailScrollFrameScrollBarThumbTexture {
}
ScrollUpButton = CraftDetailScrollFrameScrollBarScrollUpButton {
}
ScrollDownButton = CraftDetailScrollFrameScrollBarScrollDownButton {
}
}
CraftDescription = CraftDescription {
}
CraftIcon = CraftIcon {
hasItem = 1
Frame = Frame {
}
}
CraftCreateButton = CraftCreateButton {
Right = Texture {
}
Left = Texture {
}
fitTextWidthPadding = 40
Text = CraftCreateButtonText {
}
Middle = Texture {
}
fitTextCanWidthDecrease = true
}
CraftCancelButton = CraftCancelButton {
Right = Texture {
}
Left = Texture {
}
fitTextWidthPadding = 40
Text = CraftCancelButtonText {
}
Middle = Texture {
}
fitTextCanWidthDecrease = true
}
meta =

{
T_MonitoredEvents = {
}
Widget_AnchorTop = CraftFrameCloseButton {
}
HookedRankFrame = CraftRankFrame {
}
HookedDetailChild = CraftDetailScrollChildFrame {
}
HookedFrame = CraftFrame {
}
HookedDetailBar = CraftDetailScrollFrameScrollBar {
}
HookedScrollFrame = CraftListScrollFrame {
}
T_ToggleOnSkill = {
}
T_FunctionName = {
}
Widget_PositionSkippedByInfoInFrame = CraftDescription {
}
T_HookedFrameWidgets = {
}
T_DisabledFuncName = {
}
HookedScrollBar = CraftListScrollFrameScrollBar {
}
HookedDetailFrame = CraftDetailScrollFrame {
}
HookedPortrait = CraftFramePortrait {
}
T_DisabledFunc = {
}
Widget_AnchorLeftOfTabFrame = CraftRankFrameBorder {
}
T_StyleLayout = {
}
}
_G = {
ERR_OUT_OF_CHI = "Not enough chi"
DH_HAVOC_CORE_ABILITY_2 = "Strong melee attack that consumes Fury. If it critical strikes, some Fury is refunded."
UNIT_NAMES_COMBATLOG_TOOLTIP = "Color unit names."
LE_GAME_ERR_CHAT_RAID_RESTRICTED_TRIAL = 798
SPELL_FAILED_CUSTOM_ERROR_71 = "This partygoer wants to dance with you."
DetailsFrameworkLabelNumber251484 = DetailsFrameworkLabelNumber251484 {
}
ContainerFrame3Item24SubIconTexture = ContainerFrame3Item24SubIconTexture {
}
MultiBarLeftButton7 = MultiBarLeftButton7 {
}
LE_GAME_ERR_INVALID_FOLLOW_PVP_COMBAT = 365
MerchantItem6AltCurrencyFrameItem1Text = MerchantItem6AltCurrencyFrameItem1Text {
}
OPTION_SHOW_ACTION_BAR5_TOOLTIP = "Attached to the left side of Action Bar 4 by default"
BINDING_NAME_NAMEPLATES = "Show Enemy Name Plates"
CHAT_HEADER_SUFFIX = ": "
MultiBarBottomRightButton8Shine5 = MultiBarBottomRightButton8Shine5 {
}
CALENDAR_RAID_RESET_DESCRIPTION = "%1$s resets at %2$s."
CraftExpandTabLeft = CraftExpandTabLeft {
}
CellRaidFrameHeader3UnitButton4TargetedSpells1 = CellRaidFrameHeader3UnitButton4TargetedSpells1 {
}
LE_GAME_ERR_RECRUIT_A_FRIEND_FAILED = 1018
CompactRaidFrameManagerDisplayFrameHiddenModeToggleTopRight = CompactRaidFrameManagerDisplayFrameHiddenModeToggleTopRight {
}
LE_GAME_ERR_ONLY_ONE_QUIVER = 33
INT_SPELL_DURATION_HOURS = "%d |4hour:hrs;"
PallyPowerBlessingsFramePlayer14Line5 = PallyPowerBlessingsFramePlayer14Line5 {
}
TrinketMenu_Trinket1Shine13

23x alaTradeSkill/ui.lua:358: attempt to index field 'HaveMaterialsCheck' (a nil value)
[string "@alaTradeSkill/ui.lua"]:358: in function `UpdateFrame'
[string "@alaTradeSkill/ui.lua"]:3164: in function <alaTradeSkill/ui.lua:3163>
[string "@alaTradeSkill/init.lua"]:216: in function <alaTradeSkill/init.lua:204>

Locals:
Frame = Frame {
SearchEditBoxNameOnly = CheckButton {
}
T_DisabledFuncName =

{
}
list = {
}
SetFrame = Frame {
}
RankOffsetSlider = Slider {
}
prev_var_update_time = 554203.674000
T_ToggleOnSkill = {
}
PortraitButton = Button {
}
TextureBackground = Frame {
}
T_HookedFrameWidgets = {
}
HookedPortrait = CraftFramePortrait {
}
T_DisabledFunc = {
}
TextureLineBottom = Texture {
}
Widget_AnchorTop = CraftFrameCloseButton {
}
HookedRankFrame = CraftRankFrame {
}
update = true
T_SkillListButtons = {
}
HookedFrame = CraftFrame {
}
ScrollFrame = ScrollFrame {
}
HookedDetailBar = CraftDetailScrollFrameScrollBar {
}
TabFrame = Frame {
}
PortraitBorder = Texture {
}
notlinked = true
flag = 10
ProfitFrame = Frame {
}
HookedScrollFrame = CraftListScrollFrame {
}
T_ReagentButtons = {
}
TextureLineMiddle = Texture {
}
T_FunctionName = {
}
Widget_AnchorLeftOfTabFrame = CraftRankFrameBorder {
}
Widget_PositionSkippedByInfoInFrame = CraftDescription {
}
SearchEditBox = EditBox {
}
ToggleButton = Button {
}
T_MonitoredEvents = {
}
HookedDetailChild = CraftDetailScrollChildFrame {
}
HookedScrollBar = CraftListScrollFrameScrollBar {
}
HookedDetailFrame = CraftDetailScrollFrame {
}
ExpandButton = Button {
}
RankOffsetButton = Button {
}
ShrinkButton = Button {
}
T_StyleLayout = {
}
SearchEditBoxOK = Button {
}
TextureLineTop = Texture {
}
}
notlinked = true
skillName = "Enchanting"
cur_rank = 300
max_rank = 300
pid = 10
set = {
shown = true
PROFIT_SHOW_COST_ONLY = false
showSet = true
filterClass = true
searchText = "speed"
showItemInsteadOfSpell = false
phase = 6
haveMaterials = false
showRank = true
update = true
showProfit = false
showUnkown = false
searchNameOnly = false
filterSpec = true
showHighRank = false
rankoffset = 0
showKnown = true
}
var = {
1 = {
}
2 = {
}
max_rank = 300
update = true
cur_rank = 300
}
update_var = true
update_list = true
(*temporary) = nil
(*temporary) = nil
(*temporary) = -51
(*temporary) = -24
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = "attempt to index field 'HaveMaterialsCheck' (a nil value)"
DataAgent = {
__DataVersion = 211227
T_RaceBonus = {
}
T_TradeSkill_ID = {
}
USELFCLASSBIT = 2
T_TradeSkill_CheckID = {
}
T_PriceSpellBlackList = {
}
T_TradeSkill_CooldownList = {
}
MAXRANK = 300
DBMINPID = 1
T_Recipe_Data = {
}
T_MaterialVendorPrice = {
}
T_TradeSkill_Spec2Pid = {
}
DBMAXPID = 14
CURPHASE = 6
LearnedRecipesHash = {
}
T_TradeSkill_Texture = {
}
Trainer = {
}
MAXPHASE = 6
T_PriceItemBlackList = {
}
T_TradeSkill_HasUI = {
}
T_TradeSkill_RecipeList = {
}
}
VT = {
AVAR = {
}
__is_dev = false
__super = {
}
__is_loggedin = true
SET = {
}
CACHE = {
}
__scrolllib = {
}
FAV = {
}
__menulib = {
}
AuctionMod = {
}
SetCommandList = {
}
__uireimp = {
}
__is_this_loaded = true
AuctionMods = {
}
VAR = {
}
UIFrames = {
}
CMM = {
}
SVAR = {
}
}
LT_LinkedSkillVar = {
1 = {
}
2 = {
}
max_rank = 75
cur_rank = 0
}
MAXIMUM_VAR_UPDATE_PERIOD = 4
l10n = {
PRICE_DIFF_INFO+ = "|cff00ff00+|r"
EXPLORER_TITLE = "ALA "
non_tradable = "Non-tradable"
ITEM_SUB_TYPE_LIST = {
}
BOARD_LOCK = "LOCK"
sold_by = "Sold by"
PRICE_DIFF_AH0 = "AH"
NOT_AVAILABLE_FOR_PLAYER'S_FACTION = "Not available for player's faction"
CHAR_LIST = "Character list"
COST_PRICE_KNOWN = "|cffff00