Talk:Minecart with Furnace

Error in history
I dont know why but there is an error in history ("Lua error in Module:Convert at line 59: attempt to concatenate local 'outputVal' (a nil value).") and i dont know how to fix it. If someone know how to fix this error, fix it please. Thanks --xrup (discuss) 22:11 10 November 2020 (UTC).