you must edit not only that number here the db:
// ID,AegisName,Name,Type,Buy,Sell,Weight,ATK[:MATK],DEF,Range,Slots,Job,Class,Gender,Loc,wLV,eLV[:maxLevel],Refineable,View,{ Script },{ OnEquip_Script },{ OnUnequip_Script }
the wikiis dead so you must search by yourself the Class number but try to use the 63 that must work for all classes, buut with the limit of the job.... btw after you reloaditemdb must relog, cause the item will still said that cant be put on or something like that, so every time you edit that things you must re-enter to your server.