getting an error on startup which seems related to rocketman?

RocketEngine.Gui:UI error in ExecuteSafeGUIAction System.NullReferenceException: Object reference not set to an instance of an object
[Ref D3A36C55]
at RimDialogue.Access.Verse_Messages_Message.Prefix (Verse.Message msg, System.Boolean historical) <0x23ca558fb60 + 0x00029> in <b0053430650a4d56a41e36c1c118cd2c>:0
at Verse.Messages.Message (Verse.Message msg, System.Boolean historical) [0x00019] in <630e2863bc9a4a3493f2eff01e3a9556>:0
- PREFIX ProceduralProducts.RimDialogue: Void RimDialogue.Access.Verse_Messages_Message:Prefix(Message msg, Boolean historical)
at Verse.Messages.Message (System.String text, Verse.MessageTypeDef def, System.Boolean historical) [0x0001f] in <630e2863bc9a4a3493f2eff01e3a9556>:0
at CombatAI.Gui.Window_QuickSetup.<DoDifficultySettings>b__9_3 (UnityEngine.Rect rect) [0x00048] in <477525e259894e0b87c6be755c4aecb2>:0
at CombatAI.Gui.GUIUtility+<>c__DisplayClass10_1.<Row>b__0 () [0x00000] in <477525e259894e0b87c6be755c4aecb2>:0
at CombatAI.Gui.GUIUtility.ExecuteSafeGUIAction (System.Action function, System.Action fallbackAction, System.Boolean catchExceptions) [0x00007] in <477525e259894e0b87c6be755c4aecb2>:0
(Filename: C:\buildslave\unity\build\Runtime/Export/Debug/Debug.bindings.h Line: 39)

RocketEngine.Gui:UI error in ExecuteSafeGUIAction System.NullReferenceException: Object reference not set to an instance of an object
[Ref A801DC4E]
at CombatAI.Gui.GUIUtility.ExecuteSafeGUIAction (System.Action function, System.Action fallbackAction, System.Boolean catchExceptions) [0x0003f] in <477525e259894e0b87c6be755c4aecb2>:0
at CombatAI.Gui.GUIUtility.Row (UnityEngine.Rect rect, System.Collections.Generic.List`1[T] contentLambdas, System.Boolean drawDivider, System.Boolean drawBackground) [0x00100] in <477525e259894e0b87c6be755c4aecb2>:0
at CombatAI.Gui.Window_QuickSetup.DoDifficultySettings (UnityEngine.Rect inRect) [0x00067] in <477525e259894e0b87c6be755c4aecb2>:0
at CombatAI.Gui.Window_QuickSetup+<>c__DisplayClass7_0.<DoWindowContents>b__1 (UnityEngine.Rect rect) [0x00000] in <477525e259894e0b87c6be755c4aecb2>:0
at CombatAI.Gui.IListing_Custom+<>c__DisplayClass32_0.<Lambda>b__0 () [0x00000] in <477525e259894e0b87c6be755c4aecb2>:0
at CombatAI.Gui.GUIUtility.ExecuteSafeGUIAction (System.Action function, System.Action fallbackAction, System.Boolean catchExceptions) [0x00007] in <477525e259894e0b87c6be755c4aecb2>:0
(Filename: C:\buildslave\unity\build\Runtime/Export/Debug/Debug.bindings.h Line: 39)

Exception filling window for CombatAI.Gui.Window_QuickSetup: System.NullReferenceException: Object reference not set to an instance of an object
[Ref DDD580AE]
at CombatAI.Gui.GUIUtility.ExecuteSafeGUIAction (System.Action function, System.Action fallbackAction, System.Boolean catchExceptions) [0x0003f] in <477525e259894e0b87c6be755c4aecb2>:0
at CombatAI.Gui.IListing_Custom.Lambda (System.Single height, System.Action`1[T] contentLambda, System.Boolean useMargins, System.Action fallback) [0x00022] in <477525e259894e0b87c6be755c4aecb2>:0
at CombatAI.Gui.Listing_Collapsible.Lambda (System.Single height, System.Action`1[T] contentLambda, System.Boolean invert, System.Boolean useMargins, System.Action fallback) [0x0000a] in <477525e259894e0b87c6be755c4aecb2>:0
at CombatAI.Gui.Window_QuickSetup.DoWindowContents (UnityEngine.Rect inRect) [0x000b9] in <477525e259894e0b87c6be755c4aecb2>:0
at Verse.Window.InnerWindowOnGUI (System.Int32 x) [0x001d3] in <630e2863bc9a4a3493f2eff01e3a9556>:0
- TRANSPILER net.pardeike.rimworld.lib.harmony: IEnumerable`1 VisualExceptions.ExceptionsAndActivatorHandler:Transpiler(IEnumerable`1 instructions, MethodBase original)
(Filename: C:\buildslave\unity\build\Runtime/Export/Debug/Debug.bindings.h Line: 39)