How do I fix this console spam?

Below is what is spamming my console but I don't know what is causing it or how to fix it.  Any help is appreciated.

(Filename: <917e1e1cd7cc440585b944bb9512ff78> Line: 0)
TypeLoadException: Could not resolve type with token 010004e0 (from typeref, class/assembly HarmonyModInfo, Rust.Harmony, Version=*.*.*.*, Culture=neutral, PublicKeyToken=null)
  at Facepunch.Rust.PerformanceLogging.OnFrame () [0x000fc] in <917e1e1cd7cc440585b944bb9512ff78>:0 
  at ServerMgr.Update () [0x00021] in <917e1e1cd7cc440585b944bb9512ff78>:0 
UnityEngine.DebugLogHandler:Internal_LogException(Exception, Object)
UnityEngine.DebugLogHandler:LogException(Exception, Object)
UnityEngine.Logger:LogException(Exception, Object)
UnityEngine.Debug:LogException(Exception)
ServerMgr:Update()

Just an off-the-cuff idea, but in situations where a token cant be resolved is in my experience occasionally because you're running an outdated DLL or assembly and need to re-install it. So, because the error appears to come from Harmony, I'd say download and re-install Oxide (being sure to UNBLOCK the zip file before pulling files) and try rebooting the server.

Since tomorrow is wipe, and this is 2 weeks old, have a go at it tomorrow.