Got this when my character were mounted on my other character (Paladin on Druid). I had just complete the previous quest and got Malfurion's Return
http://www.wowhead.com/quest=13573/malfurions-return
I then had my Paladin mount my Druid and the error appeared until I got where Malfurion was at the it stoped.. It stopped only after I passed the line of the awakend ancients behind Malfurion..
Edit The quest that the error happens is "Rock" The World
http://bfa.wowhead.com/quest=52257/rock-the-world

2782x Carbonite\NxMap.lua:4641: Usage: GetBattlefieldVehicleInfo(index, uiMapID)
[C]: in function GetBattlefieldVehicleInfo' Carbonite\NxMap.lua:4641: in function Update'
Carbonite\NxMap.lua:3841: in function <Carbonite\NxMap.lua:3725>

Locals:
(*temporary) = 1

This error is gone but replace with #106