Moving a multisite using XCloner

Hello everybody,

I have a network of multisite with 3 sites. One main site and two others under a sub domain name.
I would like to clone these sites (the whole multisite) under another domain name (and 2 sub domain).

I have used XCloner with the clone function but when it is finish (I haven’t any error message) I have under the new domain name a blank page with this address :
https://olddomain.fr/wp-signup.php?new=newdomain.fr

I must say that the sub domain name haven’t been created yet but I don’t think that the origin of the issue.

By the way, is it possible to export only one website from a multisite ?

Thank you all for your help.