I recommend that you take an extra step to make the plugin substantially more efficient.
CurWeapon is sent every time the clip ammo is changed, therefore in this plugin it's being sent far more times than necessary, since you only want it when a player pulls out their knife.
Therefore it should instead be registered like this:
Code:
register_event( "CurWeapon", "Event_CurWeapon", "be", "1=1", "2=29" );
You can than also remove the line that checks if the player is holding a knife.
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