it says "cant understand this event: 'on command /sell'
on command /sell:
send player title "&6You sold items" for 2 seconds
command /sell:
trigger:
set {_s} to amount of stone in player's inventory
add {_s}*10*{multi::%player's uuid%} to {money::%player's uuid%} and {_total}
send "You have sold all your stuff for $%{_total}%"
this is the skript i have