Well I'm getting this error since a long time now, I'm not able to get it myself but people who use the site to uplaod files sometimes get it, I don't know if it causes their upload to fiail or something but I wanna know if there's any solution for this anyways, my log is simply filled with it..

[10-Apr-2014 22:39:58] PHP Notice:  iconv() [<a href='function.iconv'>function.iconv</a>]: Detected an illegal character in input string in /phpuploader/include_phpuploader.php on line 72 

line 72 is:

 $ar[$k] = iconv("UCS-2",$PhpUploader_InternalEncoding,pack("H4",substr($v,-4)));

I've already tried changing the $PhpUploader_FSEncoding to UTF-8 which solved some file name issues i had in the past, but it seems like it didn't completely solved it for some clients, any ideas?