The credentials given are correct. I am able to log in with them.
If you’re still unable to connect, you may have been IP blocked by my hoster for whatever reason. Please go to https://portons-bebe.fr and see if there is a message saying you’ve been blocked. From there, you can deactivate the block via reCaptcha.

Please note that, if you want to download the whole www folder via FTP, my hoster will block you as well.