Co jest nie tak?

Witam, mam następujący błąd:

Cytat

[23:38:35 INFO]: [Skript] Reloading all scripts...

[23:38:35 ERROR]: 'player' is not an item stack (kitygui.sk, line 12: if name of current inventory of player is "nazwaGUI":')

[23:38:35 INFO]: Loaded 7 scripts with a total of 1 trigger and 7 commands in 0.09 seconds

[23:38:35 INFO]: [Skript] Encountered 1 error while reloading all scripts!

Kod skryptu(skrypt nie jest mój):

command /zestawy [<text>]:
    trigger:
        open chest with 3 rows named "nazwaGUI" to player
        wait 1 second
        set player's current inventory's slot 1 to iron sword named "nazwa kita1"
        set player's current inventory's slot 3 to gold sword named "nazwa kita2"
        set player's current inventory's slot 4 to diamond sword named "nazwa kita3"
        set player's current inventory's slot 5 to wooden sword named "nazwa kita4"
        set player's current inventory's slot 7 to red wool named "nazwa kita5"
        set player's current inventory's slot 14 to white wool named "nazwa kita6"
on inventory click:
    if name of current inventory of player is "nazwaGUI":
        cancel event
        clicked slot is 1:
            execute player command "/ekit gracz"
        clicked slot is 3:
            execute player command "/ekit vip"
        clicked slot is 4:
            execute player command "/ekit svip"
        clicked slot is 5:
            execute player command "/ekit sponsor"
        clicked slot is 7:
            execute player command "/ekit yt"
        clicked slot is 14:
            execute player command "/ekit miniyt"