DNS record does not exist

[DaveKay]

I am trying to add a domain alias to an active subscription, but am getting the following error:

Error: DNS record does not exist.

I have disabled the subscription and re-activated it - no change to error.
I have turned off the DNS and turned it on again, also no change to error.

When I select apply template changes, plesk says the changes have been made, but also displays the error.

When using DNS health check tools, it seems that the server is serving the correct records.

Any further things to try?

Many thanks!

D

 

[DaveKay]

Infact, it appears that I get this error with all subscriptions on this server!