I am using sirmates' action to deposit items, however the script won't open the depot or do anything at all. Any ideas why?

Code:
reachgrounditem("depot")
wait(1000,2000)
openitem("depot")
wait(700,900)
openitem(3502, "locker")
wait(700,900)
openitem(DpBp, "depot chest")
wait(2000)