2 errors when click tab button:

Error while generating pawn. Rethrowing. Exception: System.NullReferenceException: Object reference not set to an instance of an object
at RimWorld.Planet.WorldPawns.GetSituation (Verse.Pawn p) [0x0000b] in <b3714756cc77449b8a338506fd9aedbb>:0
at RimWorld.Planet.WorldPawns.GetPawnsBySituationCount (RimWorld.Planet.WorldPawnSituation situation) [0x00055] in <b3714756cc77449b8a338506fd9aedbb>:0
at Verse.PawnGenerator.ChanceToRedressAnyWorldPawn (Verse.PawnGenerationRequest request) [0x00005] in <b3714756cc77449b8a338506fd9aedbb>:0
at Verse.PawnGenerator.GenerateOrRedressPawnInternal (Verse.PawnGenerationRequest request) [0x00136] in <b3714756cc77449b8a338506fd9aedbb>:0
at Verse.PawnGenerator.GeneratePawn (Verse.PawnGenerationRequest request) [0x00007] in <b3714756cc77449b8a338506fd9aedbb>:0
UnityEngine.StackTraceUtility:ExtractStackTrace ()
Verse.Log:Error (string)
Verse.PawnGenerator:GeneratePawn (Verse.PawnGenerationRequest)
Numbers.MainTabWindow_Numbers:GetHumanLikeStatDefs ()
Numbers.MainTabWindow_Numbers:.ctor ()
System.Reflection.MonoCMethod:InternalInvoke (object,object[])
System.RuntimeType:CreateInstanceMono (bool)
System.RuntimeType:CreateInstanceSlow (bool,bool,bool,System.Threading.StackCrawlMark&)
System.RuntimeType:CreateInstanceDefaultCtor (bool,bool,bool,System.Threading.StackCrawlMark&)
System.Activator:CreateInstance (System.Type,bool)
System.Activator:CreateInstance (System.Type)
RimWorld.MainButtonDef:get_TabWindow ()
RimWorld.MainTabsRoot:ToggleTab (RimWorld.MainButtonDef,bool)
RimWorld.MainButtonWorker_ToggleTab:Activate ()
RimWorld.MainButtonWorker:InterfaceTryActivate ()
RimWorld.MainButtonWorker:DoButton (UnityEngine.Rect)
RimWorld.MainButtonsRoot:DoButtons ()
RimWorld.MainButtonsRoot:MainButtonsOnGUI ()
RimWorld.UIRoot_Play:UIRootOnGUI ()
(wrapper dynamic-method) Verse.Root:Verse.Root.OnGUI_Patch1 (Verse.Root)


Root level exception in OnGUI(): System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.NullReferenceException: Object reference not set to an instance of an object
at RimWorld.Planet.WorldPawns.GetSituation (Verse.Pawn p) [0x0000b] in <b3714756cc77449b8a338506fd9aedbb>:0
at RimWorld.Planet.WorldPawns.GetPawnsBySituationCount (RimWorld.Planet.WorldPawnSituation situation) [0x00055] in <b3714756cc77449b8a338506fd9aedbb>:0
at Verse.PawnGenerator.ChanceToRedressAnyWorldPawn (Verse.PawnGenerationRequest request) [0x00005] in <b3714756cc77449b8a338506fd9aedbb>:0
at Verse.PawnGenerator.GenerateOrRedressPawnInternal (Verse.PawnGenerationRequest request) [0x00136] in <b3714756cc77449b8a338506fd9aedbb>:0
at Verse.PawnGenerator.GeneratePawn (Verse.PawnGenerationRequest request) [0x00172] in <b3714756cc77449b8a338506fd9aedbb>:0
at Numbers.MainTabWindow_Numbers.GetHumanLikeStatDefs () [0x00083] in <33b5626c87c3458d8c2886fd303438f9>:0
at Numbers.MainTabWindow_Numbers..ctor () [0x00085] in <33b5626c87c3458d8c2886fd303438f9>:0
at (wrapper managed-to-native) System.Reflection.MonoCMethod.InternalInvoke(System.Reflection.MonoCMethod,object,object[],System.Exception&)
at System.Reflection.MonoCMethod.InternalInvoke (System.Object obj, System.Object[] parameters) [0x00002] in <eae584ce26bc40229c1b1aa476bfa589>:0
--- End of inner exception stack trace ---
at System.Reflection.MonoCMethod.InternalInvoke (System.Object obj, System.Object[] parameters) [0x00014] in <eae584ce26bc40229c1b1aa476bfa589>:0
at System.RuntimeType.CreateInstanceMono (System.Boolean nonPublic) [0x000a8] in <eae584ce26bc40229c1b1aa476bfa589>:0
at System.RuntimeType.CreateInstanceSlow (System.Boolean publicOnly, System.Boolean skipCheckThis, System.Boolean fillCache, System.Threading.StackCrawlMark& stackMark) [0x00009] in <eae584ce26bc40229c1b1aa476bfa589>:0
at System.RuntimeType.CreateInstanceDefaultCtor (System.Boolean publicOnly, System.Boolean skipCheckThis, System.Boolean fillCache, System.Threading.StackCrawlMark& stackMark) [0x00027] in <eae584ce26bc40229c1b1aa476bfa589>:0
at System.Activator.CreateInstance (System.Type type, System.Boolean nonPublic) [0x00020] in <eae584ce26bc40229c1b1aa476bfa589>:0
at System.Activator.CreateInstance (System.Type type) [0x00000] in <eae584ce26bc40229c1b1aa476bfa589>:0
at RimWorld.MainButtonDef.get_TabWindow () [0x00016] in <b3714756cc77449b8a338506fd9aedbb>:0
at RimWorld.MainTabsRoot.ToggleTab (RimWorld.MainButtonDef newTab, System.Boolean playSound) [0x00065] in <b3714756cc77449b8a338506fd9aedbb>:0
at RimWorld.MainButtonWorker_ToggleTab.Activate () [0x00005] in <b3714756cc77449b8a338506fd9aedbb>:0
at RimWorld.MainButtonWorker.InterfaceTryActivate () [0x0008d] in <b3714756cc77449b8a338506fd9aedbb>:0
at RimWorld.MainButtonWorker.DoButton (UnityEngine.Rect rect) [0x000ee] in <b3714756cc77449b8a338506fd9aedbb>:0
at RimWorld.MainButtonsRoot.DoButtons () [0x00119] in <b3714756cc77449b8a338506fd9aedbb>:0
at RimWorld.MainButtonsRoot.MainButtonsOnGUI () [0x0000e] in <b3714756cc77449b8a338506fd9aedbb>:0
at RimWorld.UIRoot_Play.UIRootOnGUI () [0x00037] in <b3714756cc77449b8a338506fd9aedbb>:0
at (wrapper dynamic-method) Verse.Root.Verse.Root.OnGUI_Patch1(Verse.Root)
UnityEngine.StackTraceUtility:ExtractStackTrace ()
Verse.Log:Error (string)
(wrapper dynamic-method) Verse.Root:Verse.Root.OnGUI_Patch1 (Verse.Root)

Fixed in next update.