Forums Scripts & Popups Why does this script crash my mIRC?

on *:snotice:*did a /whois*:{
var %a $comchan($2,0)
    while (%a) {
      describe $comchan($2,%a) slaps $2 back with a large shoes. :D }
      dec %a
        }
    }
}

on *:snotice:*did a /whois*:{
  var %a $comchan($2,0)
  while (%a) {
    describe $comchan($2,%a) slaps $2 back with a large shoes. :D
    dec %a
  }
}