Wrong path for soundmanager2.swf

Hello,

I've just run a test on GTmetrix and it's saying there is a 404 problem with WPMUdev chat plugin.
Timeline is showing that my website is searching for soundmanager2.swf here :
http://www.oreille-malade.com/wp-content/plugins/chat/swf/soundmanager2.swf

But when I install the chat plugin, here is the real path :
http://www.oreille-malade.com/wp-content/plugins/wordpress-chat/swf/soundmanager2.swf

As a result there is actually a 404 error.

Could you fix that please ?

Best Regards,
Laurent