[INS-40719] IP address configured for Single Client Access Name (SCAN): msiproddb-scan is already as

[INS-40719] IP address configured for Single Client Access Name (SCAN): msiproddb-scan is already assigned to another system.

I am wondering how to solve this?

Cause - The installer could not find the IP addresses you selected as SCAN addresses. This may be because they are assigned to another system, or because the IP addresses are not listed in the DNS or hosts files as assigned to this domain name.  Action - Enter resolvable IP addresses to use as SCAN addresses.

nslookup yyyyy-scan.zzz.com

Server:         xx.xx.xx.xx

Address:        xx.xx.xx.xx#53

Name:   yyyyy-scan.zzz.com

Address: xx.xx.xx.xx