Crash With Exception ticking world when changes difficulty to easy

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    So I was testing out the modpack i just made and when i change the difficulty to anything other than peaceful the server instanly crash, I think it because of 1 of the mod have an entity that make the game crash when it spawn but i cannot find out what enity or what mod caused the crash

    Here the crash report:

    Forge 1.16.5 Crash Report [#iGCDm4A]
    189 lines
    mclo.gs