It's impossible for me to create a new App Id at : developers.facebook.com/apps

When I click on the button (Create App id), nothings happen.

You too ?

Ok. I find the solution. My problem was the name of the application (it's not possible to use Facebook inside)

Hi Grégory!

Thanks for posting about this and sharing the solution. We are glad the problem has been resolved on your website!

Feel free to let us know any other time you will need assistance with other issues or requests.
We'll be happy to help!

Cheers!