Possible solutions of your questions

Hello
please Do a trace to Your domain: start - run - enter cmd - in the black window enter tracert YOUR DOMAIN - after click to highlight - making enter - skopirovat here in the ticket

If You are experiencing zatrudina, view instructional videos http://ded07.net/helphost/tracert.htm

the server domain existents

dig laguarura.net @ns1.hosthp.net

; <<>> DiG 9.8.2rc1-RedHat-9.8.2-0.47.rc1.el6 <<>> laguarura.net @ns1.hosthp.net
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 15882
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 2, ADDITIONAL: 2

;; QUESTION SECTION:
;laguarura.net. IN A

;; ANSWER SECTION:
laguarura.net. 14400 IN A 141.101.128.114

;; AUTHORITY SECTION:
laguarura.net. 86400 IN NS ns2.hosthp.net.
laguarura.net. 86400 IN NS ns1.hosthp.net.

;; ADDITIONAL SECTION:
ns1.hosthp.net. 14400 IN A 141.101.128.114
ns2.hosthp.net. 14400 IN A 141.101.128.115

;; Query time: 0 msec
;; SERVER: 141.101.128.114#53(141.101.128.114)
;; WHEN: Sat Jun 25 21:48:24 2016
;; MSG SIZE rcvd: 122

You need to contact domain Registrar