How do I fix this error? (System.Reflection.ReflectionTypeLoadException)

So I am getting this error each time I try to enable ThoriumMod and CheatSheet. I am not sure what the cause is. It seems to be only affecting these two mods (I have other mods enabled which my friend also has however he is not experiencing the error). I have tried restarting my game, uninstalling the mods and also temporarily deactivating my firewall to see if that was the cause. None of these attempts worked.

If anyone knows how to fix this error please let me know.

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How do I fix this error? (System.Reflection.ReflectionTypeLoadException)