Logos update change error 2.0.6

When i try to update the store logo, it always shows error info in IE:



Row: 434



Char: 1



Error: ‘cscart_fileuploader’ undefined



code: 0



URL: [url]http://a-depot.com/admin.php?dispatch=site_layout.logos[/url]



I tried “local” “Server” “URL”, none worked.



I can update before, but i have no idea i can’t since when. Some update cause the error?



Please help me, thanks.