Every time I try to change the DNS I want to use It resets to original setting. I think you have a major problem here as I have no hosting with you and have an existing site elsewhere I need this domain added to. I cannot add a zone for one23.fr on the hoster as I cannot get you to change the name servers to what they need to be.
This is getting very tiresome as I know you are at fault as your control panel will not allow me to change ns even if it is your own ns but in diff order which is proof you have a problem.
Need this sorted out asap please.
BTW what does "The configuration was not validated" actually mean.. there is no explanation anywhere all I know is it failed but have no explanation why.