Error: Could not resolve type with token

I'm getting this error when I try to run AutoBookmarker. I've included the .user file in the plugins directory and not sure how else to troubleshoot. Thanks for your help, from a mapping noob!

[System.TypeLoadException] Could not resolve type with token 01000032 (from typeref, class/assembly CMInput, Main, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null)

Full log below:

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System information:
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APP: ChroMapper 0.8.458, Unity 2021.1.15f1 ("F:\Projects\Audio\Beat Saber\chromapper\ChroMapper.exe")
CPU: AMD Ryzen 5 5600X 6-Core Processor  (12 cores)
GPU: NVIDIA GeForce RTX 2070 SUPER
RAM: 32677 MB
OS: Windows 10  (10.0.19043) 64bit

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Exception:
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[System.TypeLoadException] Could not resolve type with token 01000032 (from typeref, class/assembly CMInput, Main, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null)
  at ChroMapperAutoBookmarker.PromptManager.OnClick () [0x00000] in <1ca69bec772d4a15a8e8900b77bb4959>:0 
  at UnityEngine.Events.InvokableCall.Invoke () [0x00010] in <b073a18566934b8aafa93f46ae50492d>:0 
  at UnityEngine.Events.UnityEvent.Invoke () [0x00022] in <b073a18566934b8aafa93f46ae50492d>:0 
  at UnityEngine.UI.Button.Press () [0x00027] in /home/jenkins/agent/workspace/ChroMapper/checkout/Library/PackageCache/com.unity.ugui@1.0.0/Runtime/UI/Core/Button.cs:70 
  at UnityEngine.UI.Button.OnPointerClick (UnityEngine.EventSystems.PointerEventData eventData) [0x00010] in /home/jenkins/agent/workspace/ChroMapper/checkout/Library/PackageCache/com.unity.ugui@1.0.0/Runtime/UI/Core/Button.cs:114 
  at UnityEngine.EventSystems.ExecuteEvents.Execute (UnityEngine.EventSystems.IPointerClickHandler handler, UnityEngine.EventSystems.BaseEventData eventData) [0x00001] in /home/jenkins/agent/workspace/ChroMapper/checkout/Library/PackageCache/com.unity.ugui@1.0.0/Runtime/EventSystem/ExecuteEvents.cs:57 
  at UnityEngine.EventSystems.ExecuteEvents.Execute[T] (UnityEngine.GameObject target, UnityEngine.EventSystems.BaseEventData eventData, UnityEngine.EventSystems.ExecuteEvents+EventFunction`1[T1] functor) [0x0006f] in /home/jenkins/agent/workspace/ChroMapper/checkout/Library/PackageCache/com.unity.ugui@1.0.0/Runtime/EventSystem/ExecuteEvents.cs:272 

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Recent log messages before error:
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Found IPauseMenuActions in Extras Menu
Found IBPMTapperActions in BPM Tapper
Found IUIModeActions in UI Mode
Found IDebugActions in Dev Console
Found IMenusExtendedActions in Input Box
Found IMenusExtendedActions in Color Picker Box
Disabling some objects since an Advanced setting is not enabled...
Loaded 0 presets for custom events.
Discord Presence updated!
Discord Presence updated!
Refreshing measure lines...
WaveformGenerator: Starting Background Thread
WaveformGenerator: Combine Channels done 11229736
Background Thread Completed
FFT Thread Completed
FFT Thread Completed
FFT Thread Completed
FFT Thread Completed
WaveformGenerator: Main thread done
[System.TypeLoadException] Could not resolve type with token 01000032 (from typeref, class/assembly CMInput, Main, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null)`

Atlas-Rhythm / ChroMapperAutoBookmarker

Error: Could not resolve type with token #2