Exception in JobDriver tick for pawn Mech_Assaulter1966055 driver=JobDriver_PlantHarvestWithSeeds (toilIndex=6) driver.job=(Harvest (Job_16051653) A=Thing_Plant_Corn2007067) lastJobGiver=WhatTheHack.Jobs.JobGiver_Work_Mechanoid
System.NullReferenceException: Object reference not set to an instance of an object
at RimWorld.SkillRecord.CalculateTotallyDisabled () <0x00026>
at RimWorld.SkillRecord.get_TotallyDisabled () <0x00028>
at RimWorld.SkillRecord.get_Level () <0x0001c>
at RimWorld.SkillNeed_BaseBonus.ValueFor (Verse.Pawn) <0x0006d>
at (wrapper dynamic-method) RimWorld.StatWorker.GetValueUnfinalized_Patch1 (object,RimWorld.StatRequest,bool) <0x00a55>
at RimWorld.StatWorker.GetValue (RimWorld.StatRequest,bool) <0x0014a>
at RimWorld.StatWorker.GetValue (Verse.Thing,bool) <0x00070>
at (wrapper dynamic-method) RimWorld.StatExtension.GetStatValue_Patch2 (Verse.Thing,RimWorld.StatDef,bool) <0x00066>
at (wrapper dynamic-method) SeedsPlease.JobDriver_PlantWorkWithSeeds/<>c__DisplayClass3_0.<HarvestSeedsToil>b__0_Patch0 (object) <0x000e1>
at (wrapper dynamic-method) Verse.AI.JobDriver.DriverTick_Patch1 (object) <0x004c8>

Verse.Log:Error(String, Boolean)
Verse.AI.JobUtility:TryStartErrorRecoverJob(Pawn, String, Exception, JobDriver)
Verse.AI.JobDriver:DriverTick_Patch1(Object)
Verse.AI.Pawn_JobTracker:JobTrackerTick()
Verse.Pawn:Tick_Patch3(Object)
Verse.TickList:Tick()
Verse.TickManager:DoSingleTick()
Verse.TickManager:TickManagerUpdate()
Verse.Game:UpdatePlay()
Verse.Root_Play:Update()