whats wrong with this script? it wont stop the timer!

on @*:text:*#*:#XpressioN:{
if ($nick isvoice $chan) { mode $chan -v $nick {
/msg $chan Stop med at advertise på #XpressioN, (5m -v) {
timerdevoice 0 10 mode $chan +v $nick
}
}
}
}