ReplaceStuff throwing errors, does anyone know how to sort it?

I only noticed as I hit '`' by mistake bringing up the Debug Log. I would really prefer not to disable this mod as it's so nice, but at the same time I would also like not to have hundreds of errors piling up. To my knowledge, these VFE Walls were compatible.

Please see:

Exception in JobDriver tick for pawn Mech_Constructoid217489 driver=JobDriver_ConstructFinishFrame (toilIndex=1) driver.job=(FinishFrame (Job_5917662) A = Thing_VFEArch_FineWall_ReplaceStuff1728660 Giver = JobGiver_Work [workGiverDef: ConstructFinishFrames])

System.NullReferenceException: Object reference not set to an instance of an object

[Ref DB53F450] Duplicate stacktrace, see ref for original

UnityEngine.StackTraceUtility:ExtractStackTrace ()

(wrapper dynamic-method) MonoMod.Utils.DynamicMethodDefinition:Verse.Log.Error_Patch1 (string)

Verse.AI.JobUtility:TryStartErrorRecoverJob (Verse.Pawn,string,System.Exception,Verse.AI.JobDriver)

(wrapper dynamic-method) MonoMod.Utils.DynamicMethodDefinition:Verse.AI.JobDriver.DriverTick_Patch0 (Verse.AI.JobDriver)

(wrapper dynamic-method) MonoMod.Utils.DynamicMethodDefinition:Verse.AI.Pawn_JobTracker.JobTrackerTick_Patch0 (Verse.AI.Pawn_JobTracker)

(wrapper dynamic-method) MonoMod.Utils.DynamicMethodDefinition:Verse.Pawn.Tick_Patch1 (Verse.Pawn)

Verse.TickList:Tick ()

(wrapper dynamic-method) MonoMod.Utils.DynamicMethodDefinition:Verse.TickManager.DoSingleTick_Patch3 (Verse.TickManager)

Verse.TickManager:TickManagerUpdate ()

(wrapper dynamic-method) MonoMod.Utils.DynamicMethodDefinition:Verse.Game.UpdatePlay_Patch1 (Verse.Game)

Verse.Root_Play:Update ()