The script uploads, resizes and adds the photo to the database but gives me notice!

[eluser]behnampmdg3[/eluser]
Hello; I use this web page to upload and resize photos. It works fine but I get a notice as below! What am I doing wrong?
It only happens on-line. SO when I do it locally I dont get the notice!

Thanks

A PHP Error was encountered

Severity: Warning

Message: finfo_open(): Failed to load magic database at ''.

Filename: libraries/Upload.php

Line Number: 1035