Server DNS address could not be found. While ping and traceroute are working correct!

Hi, yesterday I created domain records, but it still shows me “Server DNS address could not be found.”. My whois

registrant type:       individual
created:               2017.09.15 10:47:42
last modified:         2017.09.15 12:41:55
renewal date:          2018.09.15 10:47:42

no option

dnssec:                Unsigned

ul. Zbożowa 4
70-653 Szczecin

WHOIS database responses:

WHOIS displays data with a delay not exceeding 15 minutes in relation to the .pl Registry system
Registrant data available at

my traceroute

traceroute to (, 64 hops max, 52 byte packets
 1  funbox (  1.866 ms  1.788 ms  1.497 ms
 2 (  3.220 ms  3.539 ms  3.578 ms
 3 (  3.757 ms  2.725 ms  2.830 ms
 4 (  13.738 ms  19.738 ms  13.848 ms
 5 (  29.031 ms  28.103 ms  29.051 ms
 6 (  29.209 ms (  28.576 ms (  28.719 ms
 7 (  29.096 ms (  29.814 ms (  28.317 ms
 8 (  28.678 ms (  28.989 ms  29.169 ms
 9  * * *
10 (  30.458 ms  29.385 ms  29.461 ms

everything seems to be ok, why does this error shows?

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It was the problem of cached 301 redirect to www without set CNAME. Now it works after cache cleaning ;)

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