This is designmi.ca/boutique. The shopping card is in french. The only thing is that I had to remove the fedex option for making sure that any other order can be place with fedex shipping. If it's possible for the person to let me know when he's gonna check it, I will activate the extension.

I've did all that. I even delete the folder from fedex and reinstall it completely and it's always showing 0'00$ for the shipping on both Fedex options.

Thanks I had try this and it seem t work ! I will make some test to make sure everything is fine. But thank you for the information.