Deadlock situation with DNS Error 'hostname must be unique'

[sapsa]

Code:

'zeus.domain.com' has no address records (A or AAAA) zone

tells you there are no A or AAAA records... are there actually A records for domain.com on this same DNS page?

I added 'domain.com' then I added A record of ZEUS, then I couldn't add SPF nor TXT because it said "ERROR DNS NOT SAVED
Hostnames must be unique.'
So I remove A record of zeus, and was thinking that adding SPF/TXT via Sentora DNS Manager will add A record auto-magicly, sadly it didnt.

Now the GUI prevent me from adding A or TXT record about hostname: zeus

Edit: So I end up adding "A" record for zeus, because I wouldn't access server without that. And will wait for solution for SPF record