If anyone takes "No input file specified." error.
You must open the product by a php editor and change this
Code:
$sonucal .= "<a href=\"".$forum_url."/archive/index.php/f-$forum_val.html\">".$forum_val."</a> ";
to this
Code:
$sonucal .= "<a href=\"".$forum_url."/archive/index.php?f-$forum_val.html\">".$forum_val."</a> ";
I made this and there is no "No input file specified." error now.