I think Bekar made some typo when he re-wrote your code.
Replace the while by this one

Code:
while ($nick(%chan, %i)) {
    var %smask = $address($v1,2)
    if ($ialchan(%smask,%chan,0) > 1) && (%smask !isin %addr) {
      %addr = %addr %smask
      aline -p 12 %win $timestamp $chr(42) Found ( $+ $ialchan(%smask,%chan,0) $+ ) Clones in $+($chr(40),%chan,$chr(41)) from ( $+ $gettok(%smask,2,64) $+ )
      var %cnt = 1
      while ($ialchan(%smask,%chan,%cnt)) {
        aline -p %win $timestamp $chr(42) $+(%cnt,.) $gettok($v1, 1, 33)
        inc %cnt
      }
      aline -p %win -
    }
    inc %i
  }



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