Hi Guys,
writing from Italy.
We need help. We've tried many times to change the dns codes, but the button "apply the changes" doesn't work.
We need to change:
- dns102.ovh.net -----> ns14.wixdns.net
and
- ns102.ovhnet -----> ns15.wixdnsnet
Attached you can see the screenshot regarding the errore.
If anyone knows how it works, please help us! 
Thanks in advance