I try Whois.whois('www.kenhxomtro.com.vn') but get this error
Whois::WebInterfaceError: This TLD has no WHOIS server, but you can access the WHOIS database at `http://www.vnnic.vn/en/domain'
How can I fix it?
Please note www.kenhxomtro.com.vn is not a domain, kenhxomtro.com.vn. Anyhow, the reason of the exception is that the VN TLD has no public whois server.
There is no fix.