[Admins]

Soon a new npcserver will be uploaded which enforces correct triggerclient syntax. It must be:

player.triggerclient("weapon", "weaponname", params...)

Instead of "weapon" you can also use "gui". "npc" is not supported yet, it's currently only supported for triggerserver().
This change has been made to speed it up (can speed up some servers 1-2% cpu time since it's called often with a lot of parameters), and to match the syntax of triggerserver().

Update:
You can still provide more than 3 parameters, it's combining all additional parameters to an array/comma text anyway, works with all Graal script functions which expect a string as last parameter (scheduleevent etc.). It's just enforcing that you provide the "gui" or "weapon" parameter.