Problem after deleting the free level

Hello,

i have a problem i had deleted the free level of pro site. so the plugin generate a new free level that's ok but now in the pricing table i can see two free level and i cannot delete that.

you can see here: https://clicweb.net/pro-site/

i have grant my account

you can see the picture here: https://clicweb.net/wp-content/uploads/2015/06/Créez-un-site-web-ClicWeb.net-Le-Réseau.png