14x LiteMount/LM_Drive.lua:47: attempt to call field 'GetOverrideSpell' (a nil value)
[string "@LiteMount/LM_Drive.lua"]:47: in function <LiteMount/LM_Drive.lua:46>
[string "=(tail call)"]: ?
[string "=(tail call)"]: ?
[string "=(tail call)"]: ?
[string "=(tail call)"]: ?
[string "@LiteMount/RuleBoolean.lua"]:138: in function <LiteMount/RuleBoolean.lua:136>
[string "=(tail call)"]: ?
[string "@LiteMount/RuleBoolean.lua"]:151: in function <LiteMount/RuleBoolean.lua:145>
[string "=(tail call)"]: ?
[string "@LiteMount/Rule.lua"]:140: in function Dispatch' [string "@LiteMount/RuleSet.lua"]:60: in function Run'
[string "@LiteMount/ActionButton.lua"]:80: in function <LiteMount/ActionButton.lua:25>
[string "=[C]"]: in function Click' [string "@Blizzard_ChatFrameBase/Classic/ChatFrame.lua"]:1675: in function ?'
[string "@Blizzard_ChatFrameBase/Classic/ChatFrame.lua"]:5033: in function ChatEdit_ParseText' [string "@Blizzard_ChatFrameBase/Classic/ChatFrame.lua"]:4705: in function ChatEdit_SendText'
[string "@Blizzard_ChatFrameBase/Classic/ChatFrame.lua"]:3081: in function <Blizzard_ChatFrameBase/Classic/ChatFrame.lua:3075>
[string "=[C]"]: in function RunMacroText' [string "@Blizzard_FrameXML/Classic/SecureTemplates.lua"]:416: in function handler'
[string "@Blizzard_FrameXML/Classic/SecureTemplates.lua"]:612: in function <Blizzard_FrameXML/Classic/SecureTemplates.lua:556>

Locals:
(*temporary) = nil
(*temporary) = 1215279
(*temporary) = "attempt to call field 'GetOverrideSpell' (a nil value)"
C_Spell =

{
}
LM = {
C_Spell = {
}
TravelForm = {
}
Mount = {
}
Drive = {
}
FLAG = {
}
MountRegistry = Frame {
}
MountList = {
}
Spell = {
}
UIFilter = {
}
ActionButton = {
}
Actions = {
}
RuleSet = {
}
Rule = {
}
Journal = {
}
Options = {
}
RuleArguments = {
}
Vars = {
}
Conditions = {
}
Nagrand = {
}
RunningWild = {
}
SPELL = {
}
MOUNT_TYPE_NAMES = {
}
Soar = {
}
GhostWolf = {
}
db = {
}
SecureAction = {
}
RuleContext = {
}
RuleBoolean = {
}
MOUNT_TYPE_INFO = {
}
Environment = Frame {
}
MOUNTFAMILY = {
}
C_MountJournal = {
}
ITEM = {
}
Localize = {
}
ItemSummoned = {
}
}

Duplicate of #324.

This was already fixed before the bug report was logged.