Solved [Self Solved] Set lore to variable

[Crocie]

i want to set the first line lore of event-item (paper) to a variable

on rightclick holding paper:
    if player is holding paper named "&cBanknote":
        set {_bank} to lore of event-item # Problem Here

Full Script

command /withdraw <integer>:
    trigger:
        if arg 1 is set:
            if {eco.%player%} is greater than or equal to arg 1:
                if arg 1 is more than 0:
                    give player paper named "&cBanknote" with lore "%arg 1%"
                    remove arg 1 from {eco.%player%}
                else:
                    send "try again"
            else:
                send "try again"
        else:
            send "try again"

on rightclick holding paper:
    if player is holding paper named "&cBanknote":
        set {_bank} to lore of event-item