Though they are stated in the dns and i can ping it:Wildcard unavailable

The affected site is which should be a subset of
I tried modifying the dns of the parked domain (free) and adding the domain to (payed option)
My hosting and registrar is Infomaniak network (
Could it be because of a security plugin? I have word fence and i theme security shared on the wordpress multi-site network. It is a domain based network and it works perfectly with and
Thank you very much for your help