Rimworld error report

Called DrawWorldLayers() but already regenerating. This shouldn't ever happen because LongEventHandler should have stopped us.
Verse.Log:Error(String)
RimWorld.Planet.WorldRenderer:DrawWorldLayers()
RimWorld.Planet.World:WorldUpdate()
Verse.Game:UpdatePlay()
Verse.Root_Play:Update()

Exception filling window for Verse.ImmediateWindow: System.ArgumentNullException: Argument cannot be null.
Parameter name: key
at System.Collections.Generic.Dictionary`2<string, RimWorld.ScenarioDef>.TryGetValue (string,RimWorld.ScenarioDef&) <0x00178>
at Verse.DefDatabase`1<RimWorld.ScenarioDef>.GetNamed (string,bool) <0x00231>
at Verse.DefDatabase`1<RimWorld.ScenarioDef>.GetNamedSilentFail (string) <0x00026>
at HugsLib.Quickstart.QuickstartController.PrepareMapGeneration () <0x0001b>
at HugsLib.Quickstart.QuickstartController.InitateMapGeneration () <0x0000a>
at HugsLib.Quickstart.QuickstartController.DrawDebugToolbarButton (Verse.WidgetRow) <0x00071>
at (wrapper dynamic-method) Verse.DebugWindowsOpener.DrawButtons_Patch0 (object) <0x00135>
at Verse.DebugWindowsOpener.<DevToolStarterOnGUI>m__92C () <0x00010>
at Verse.ImmediateWindow.DoWindowContents (UnityEngine.Rect) <0x00015>
at Verse.Window/<WindowOnGUI>c__AnonStorey2C4.<>m__1B1 (int) <0x00735>

Verse.Log:Error(String)
Verse.<WindowOnGUI>c__AnonStorey2C4:<>m__1B1(Int32)
UnityEngine.GUI:CallWindowDelegate(WindowFunction, Int32, GUISkin, Int32, Single, Single, GUIStyle)