pomoc Potrzebna szybka pomoc. Problem z kodem

Witam serdecznie! Chciałbym zapytać co jest nie tak w kodzie poniżej? Chodzi mi w nim o to, że jak gracz wybierze danego skina to się mu zamienia i jeżeli ma innego to zapisuje, lecz z tym drugim mam ciągle problem... Można prosić o pomoc? Z uszanowaniem:

			loop {_ite::*}:
				add 1 to {_num}
			set {_i} to 0
			loop {_num} times:
				set {_name} to "%arg 4%"
				set {_itemtype} to "%arg 2% %arg 3%" parsed as item
				loop 50 times:
					set {_l} to loop-value-2
					if {skinplayer.%player%.%{_ite.item::%{_l}%}%.%{_l}%} is set:
						if {itemnamelast.%player%} is not {_ite::%{_i}%}:
							send "&cZmiana"
							send "&aPomyślnie zmieniono skin na &6%{_name}%&a!"
							set {_item} to player's inventory's slot {itemslotlast.%player%}
							set name of {_item} to "%{_name}%"
							set player's inventory's slot {itemslotlast.%player%} to {_item}
							clear {skinplayer.%player%.%{_ite.item::%{_l}%}%.%{_l}%}
						else:
							send "&aZmiana"
							set {skinplayer.%player%.%{_ite.item::%{_l}%}%.%{_l}%} to true
							set {_item} to player's inventory's slot {itemslotlast.%player%}
							send "%{_item}%"
							set name of {_item} to "nazwa"
							set player's inventory's slot {itemslotlast.%player%} to {_item}
				add 1 to {_i}