First, you don't need to add any XP. Adding a class automatically gives you enough to level up. Second, you've misspelled "multiclass" as "mutliclass". Don't feel bad, I did the same thing in my dialogue file when I was working on this.
Third, CreateItemOnObject won't make you equip it, if that's what you want - although you couldn't equip it anyway until you actually level up, because you don't have the right feats.