IPv6 Deployment Status: latest error msg for 3sil.com.gh

Error(s) found during latest scan: NS=ns4.dnsexit.com=2604:4300:a:25::5 does not respond, NS=ns2.dnsexit.com=2604:4300:a:25::3 does not respond, NS=ns1.dnsexit.com=2604:4300:a:25::2 does not respond, NS=ns3.dnsexit.com=2604:4300:a:25::4 does not respond,