pbs1.cloud.firsthost.lv has no CNAME records.
Question and response
Question
dig pbs1.cloud.firsthost.lv. NS
Answer
The response has no answer records.
Authority
cloud.firsthost.lv. 1622 SOA dc-nano-foreman.firsthost.lv. root.cloud.firsthost.lv. 82 86400 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0