Am I correct in assuming that black market traders come from this mod?

When I try to trade with a black market trader I get the error:

JobDriver threw exception in initAction. Pawn=Ali, Job=UseCommsConsole (Job_4239062) A=Thing_CommsConsole483651, Exception: System.NullReferenceException: Object reference not set to an instance of an object
at RimWorld.TransferableUtility.TransferAsOne (Verse.Thing a, Verse.Thing b) [0x00000] in <filename unknown>:0
at RimWorld.TransferableUtility.TransferableMatching[Tradeable] (Verse.Thing thing, System.Collections.Generic.List`1 transferables) [0x00000] in <filename unknown>:0
at RimWorld.TradeDeal.AddToTradeables (Verse.Thing t, Transactor trans) [0x00000] in <filename unknown>:0
at RimWorld.TradeDeal.AddAllTradeables () [0x00000] in <filename unknown>:0
at RimWorld.TradeDeal.Reset () [0x00000] in <filename unknown>:0
at RimWorld.TradeDeal..ctor () [0x00000] in <filename unknown>:0
at RimWorld.TradeSession.SetupWith (ITrader newTrader, Verse.Pawn newPlayerNegotiator) [0x00000] in <filename unknown>:0
at RimWorld.Dialog_Trade..ctor (Verse.Pawn playerNegotiator, ITrader trader) [0x00000] in <filename unknown>:0
at RWAutoSell.TradeShip.TryOpenComms (Verse.Pawn negotiator) [0x00000] in <filename unknown>:0
at RimWorld.JobDriver_UseCommsConsole+<MakeNewToils>c__Iterator0+<MakeNewToils>c__AnonStorey1.<>m__0 () [0x00000] in <filename unknown>:0
at Verse.AI.JobDriver.TryActuallyStartNextToil () [0x00000] in <filename unknown>:0 lastJobGiver=Verse.AI.ThinkNode_QueuedJob, curJob.def=UseCommsConsole, curDriver=RimWorld.JobDriver_UseCommsConsole
Verse.Log:Error(String)
Verse.AI.Pawn_JobTracker:StartErrorRecoverJob(String)
Verse.AI.JobDriver:TryActuallyStartNextToil()
Verse.AI.JobDriver:ReadyForNextToil()
Verse.AI.JobDriver:Notify_PatherArrived()
Verse.AI.Pawn_PathFollower:PatherArrived()
Verse.AI.Pawn_PathFollower:TryEnterNextPathCell()
Verse.AI.Pawn_PathFollower:PatherTick()
Verse.Pawn:Tick_Patch1(Object)
Verse.TickList:Tick()
Verse.TickManager:DoSingleTick()
Verse.TickManager:TickManagerUpdate_Patch0(Object)
Verse.Game:UpdatePlay()
Verse.Root_Play:Update()

From my googling it seems it is trying to find an item that isn't defined or isn't defined where it expects it to be.

And seeing as I use a number of other mods, I was wondering how can fix this?

People suggested that I should move glittertech to the bottom of the list, would that help?