Wywala błędy:
//GUI SIE NIE OTWIERA, PO KLIKNIECIU NA VILLAGERA
[19:08:08 WARN]: Using an ID instead of an alias is discouraged and will likely not be supported in future versions of Skript anymore. Please replace '397' with e.g. 'mob head item'. (ac.sk, line 267: format slot 0 of player with 1 of 397 named "&4&lWe? KREDYT" to close then run "kredytwezgui"')
[19:08:08 ERROR]: '1 name "&6&lSplac KREDYT"' is not an item stack (ac.sk, line 268: format slot 8 of player with 1 of 1 name "&6&lSplac KREDYT" to close then run "kredyty oddaj"')
Do zamknięcia, sam kod zrobiłem.