Remove it if you have it installed. The safest method to revert to stock FW is to use the Restore This System option in settings (after backing up saves), then follow the official guide to install clean CFW.
: A floating UI that allows you to toggle features on/off during a match. Anti-Ban (Partial) mitsuki modz v20
For the technically inclined, here is what you would actually find if you extracted a Mitsuki_Modz_V20.vpk : Remove it if you have it installed
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