IF else if Error!

#include <file.au3>
#include <array.au3>
#include <Sound.au3>

;$path = InputBox("","Enter files path")
$path = "d:/test"
$array = _FileListToArray($path,"*.mp3",1)

$fopen = FileOpen("input.txt",2)
for $i = 1 to $array[0]
    FileWrite($fopen,$array[$i] & @CRLF)
Next
FileClose($fopen)

ShellExecuteWait("php.exe","io.php")


$foutput = FileOpen("output.txt")
$flength = FileOpen("length.txt",2)
$count = _FileCountLines("output.txt")
for $i = 1 to $count
    $line = FileReadLine($foutput,$i)
    $sopen = _SoundOpen($path & "/" & $line)
    if $i < $count then
        FileWrite($flength,$line & "/" & Ceiling(_SoundLength($sopen,2)/1000) & "/")
    Else If $i = $count Then
        FileWrite($flength,$line & "/" & Ceiling(_SoundLength($sopen,2)/1000))
    Else
        MsgBox(0,0,"error")
    EndIf
    _SoundClose($sopen)
Next
FileClose($foutput)
FileClose($flength)