My b2evolution Version: 4.1.x

Hi, I'm currently covering a live event and i have a little problem about this plugin...can someone help me?!

When O post a post in my blog...the plugin post a tweet on my account but with french caracters :
https://twitter.com/MaxPhotoBlog/status/206372798120210434

I've search on the forum but i can't really spend hour search for the solution...so someone know how to fix it??

THANKS