x bad argument #1 to '?' (Usage: local definitionInfo = C_Traits.GetDefinitionInfo(definitionID))
[string "=[C]"]: in function GetDefinitionInfo' [string "@MacroToolkit/modules/parser.lua"]:44: in function <MacroToolkit/modules/parser.lua:32> [string "@MacroToolkit/modules/parser.lua"]:60: in function <MacroToolkit/modules/parser.lua:55> [string "@MacroToolkit/modules/parser.lua"]:314: in function <MacroToolkit/modules/parser.lua:306> [string "@MacroToolkit/modules/parser.lua"]:836: in function ParseMacro'
[string "@MacroToolkit/MacroToolkit.lua"]:502: in function FormatMacro' [string "@MacroToolkit/MacroToolkit.lua"]:851: in function MacroFrameUpdate'
[string "@MacroToolkit/MacroToolkit.lua"]:1086: in function `MacroButtonOnClick'
[string "@MacroToolkit/MacroToolkit.lua"]:992: in function <MacroToolkit/MacroToolkit.lua:992>
[string "=[C]"]: ?

Locals:
(*temporary) = "bad argument #1 to '?' (Usage: local definitionInfo = C_Traits.GetDefinitionInfo(definitionID))"

Can you link your macro?
I'm not home until late next week, so it'll stay broken for a bit

fixed:
parser.lua L44:
local definitionInfo = entryInfo and entryInfo.definitionID and C_Traits.GetDefinitionInfo(entryInfo.definitionID);