error on first aid profession

32x UnlearnedRecipes/util.lua:90: attempt to compare number with nil
[string "@UnlearnedRecipes/util.lua"]:90: in function GetRecipeDB' [string "@UnlearnedRecipes/TradeSkillFrame.lua"]:17: in function updateFunction'
[string "@SharedXML/SecureScrollTemplates.lua"]:257: in function FauxScrollFrame_OnVerticalScroll' [string "*Blizzard_TradeSkillUI.xml:434_OnVerticalScroll"]:1: in function <[string "*Blizzard_TradeSkillUI.xml:434_OnVerticalSc..."]:1> [string "=[C]"]: in function SetVerticalScroll'
[string "@SharedXML/SecureScrollTemplates.lua"]:49: in function <SharedXML/SecureScrollTemplates.lua:48>
[string "=[C]"]: ?
[string "=[C]"]: in function SetMinMaxValues' [string "@Interface_VanillaBlizzard_TradeSkillUI/Blizzard_TradeSkillUI.lua"]:30: in function TradeSkillFrame_OnShow'
[string "*Blizzard_TradeSkillUI.xml:860_OnShow"]:1: in function <[string "*Blizzard_TradeSkillUI.xml:860_OnShow"]:1>
[string "=[C]"]: in function Show' [string "@Interface_Vanilla/FrameXML/UIParent.lua"]:2168: in function SetUIPanel'
...
[string "@TradeSkillMaster/LibTSM/Util/FSMClasses/Machine.lua"]:168: in function <.../TradeSkillMaster/LibTSM/Util/FSMClasses/Machine.lua:150>
[string "@TradeSkillMaster/External/LibTSMClass-2/LibTSMClass.lua"]:332: in function _Transition' [string "@TradeSkillMaster/LibTSM/Util/FSMClasses/Machine.lua"]:127: in function <.../TradeSkillMaster/LibTSM/Util/FSMClasses/Machine.lua:105> [string "@TradeSkillMaster/External/LibTSMClass-2/LibTSMClass.lua"]:332: in function ProcessEvent'
[string "@TradeSkillMaster/Core/UI/CraftingUI/Core.lua"]:196: in function callback' [string "@TradeSkillMaster/LibTSM/Util/Event.lua"]:132: in function ProcessEvent'
[string "@TradeSkillMaster/LibTSM/Util/Event.lua"]:150: in function <TradeSkillMaster/LibTSM/Util/Event.lua:141>
[string "=[C]"]: in function CastSpell' [string "@FrameXML/SpellBookFrame.lua"]:363: in function SpellButton_OnClick'
[string "*SpellBookFrame.xml:163_OnClick"]:4: in function <[string "*SpellBookFrame.xml:163_OnClick"]:1>

Locals:
professionName = "First Aid"
getCraftInfoFunc = defined =[C]:-1
currentSkill = 207
includeHeaders = true
numCrafts = 9
skipCache = false
(for generator) = defined =[C]:-1
(for state) =

{
1 = {
}
2 = {
}
3 = {
}
4 = {
}
5 = {
}
6 = {
}
7 = {
}
8 = {
}
9 = {
}
10 = {
}
11 = {
}
12 = {
}
13 = {
}
14 = {
}
15 = {
}
16 = {
}
17 = {
}
18 = {
}
19 = {
}
20 = {
}
21 = {
}
22 = {
}
23 = {
}
24 = {
}
25 = {
}
26 = {
}
27 = {
}
28 = {
}
29 = {
}
30 = {
}
31 = {
}
32 = {
}
33 = {
}
34 = {
}
35 = {
}
36 = {
}
37 = {
}
38 = {
}
39 = {
}
40 = {
}
41 = {
}
42 = {
}
43 = {
}
44 = {
}
45 = {
}
46 = {
}
47 = {
}
48 = {
}
49 = {
}
50 = {
}
51 = {
}
52 = {
}
53 = {
}
54 = {
}
55 = {
}
56 = {
}
57 = {
}
58 = {
}
59 = {
}
60 = {
}
61 = {
}
62 = {
}
63 = {
}
64 = {
}
65 = {
}
66 = {
}
67 = {
}
68 = {
}
69 = {
}
70 = {
}
71 = {
}
72 = {
}
73 = {
}
74 = {
}
75 = {
}
76 = {
}
77 = {
}
78 = {
}
79 = {
}
80 = {
}
81 = {
}
82 = {
}
83 = {
}
84 = {
}
85 = {
}
86 = {
}
87 = {
}
88 = {
}
89 = {
}
90 = {
}
91 = {
}
92 = {
}
93 = {
}
94 = {
}
95 = {
}
96 = {
}
97 = {
}
}
(for control) = 1
tableIndex = 1
data = {
header = "Unlearned - Trainers"
}
(*temporary) = nil
(*temporary) = {
header = "Unlearned - Trainers"
}
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = {
source = 2
minSkill = 210
spellID = 439093
itemID = 217250
reagents = {
}
requiresSeason = 1
sourceItemID = 217251
reagentQuantities = {
}
itemSource = 6
}
(*temporary) = nil
(*temporary) = {
source = 2
minSkill = 210
itemSource = 6
itemID = 217250
sourceItemID = 217251
requiresSeason = 1
reagents = {
}
reagentQuantities = {
}
spellID = 439093
}
(*temporary) = defined =[C]:-1
(*temporary) = {
source = 2
minSkill = 210
spellID = 439093
itemID = 217250
reagents = {
}
requiresSeason = 1
sourceItemID = 217251
reagentQuantities = {
}
itemSource = 6
}
(*temporary) = "itemSource"
(*temporary) = nil
(*temporary) = nil
(*temporary) = "attempt to compare number with nil"
addon = {
GetRecipeDB = defined @UnlearnedRecipes/util.lua:61
Enums = {
}
db = {
}
GetRecipeRequirementText = defined @UnlearnedRecipes/util.lua:10
Strings = {
}
}
sources = {
Recipe = 4
Trainer = 1
Item = 2
Quest = 7
Unknown = 3
WorldDrop = 6
Vendors = 5
}
UNLEARNED_TRAINER = "Unlearned - Trainers"
UNLEARNED_RECIPE_VENDOR = "Unlearned - Recipe - Vendors"
UNLEARNED_RECIPE_WORLDDROP = "Unlearned - Recipe - World Drop"
UNLEARNED_RECIPE_OTHER = "Unlearned - Recipe - Other"
UNLEARNED_UNKNOWN = "Unlearned - Unknown"