Lookup issue

Hello,

First sorry for my english I’m french.

I’m new RTIR user and i have issue with Lookup module.
When i try to find IPs or URLs i get "Unable to connect to WHOIS server
whois.iana.org http://whois.iana.org

My rt version is 4.4.1
My rtir version is 4.0.0

in rt.log i see that :

[5874] [Tue Dec 27 12:17:07 2016] [debug]: RT::Date used Time::ParseDate
to make ‘60 days ago’ 1477653427
(/opt/rt4/sbin/…/lib/RT/Date.pm:274)[5874] [Tue Dec 27 12:17:07 2016]
[debug]: RT::Date used Time::ParseDate to make ‘60 days ago’ 1477653427
(/opt/rt4/sbin/…/lib/RT/Date.pm:274)[5874] [Tue Dec 27 12:17:07 2016]
[debug]: RT::Date used Time::ParseDate to make ‘60 days ago’ 1477653427
(/opt/rt4/sbin/…/lib/RT/Date.pm:274)[5875] [Tue Dec 27 12:17:19 2016]
[debug]: RT::Date used Time::ParseDate to make ‘60 days ago’ 1477653439
(/opt/rt4/sbin/…/lib/RT/Date.pm:274)[5875] [Tue Dec 27 12:17:19 2016]
[debug]: RT::Date used Time::ParseDate to make ‘60 days ago’ 1477653439
(/opt/rt4/sbin/…/lib/RT/Date.pm:274)[5875] [Tue Dec 27 12:17:19 2016]
[debug]: RT::Date used Time::ParseDate to make ‘60 days ago’ 1477653439
(/opt/rt4/sbin/…/lib/RT/Date.pm:274)[5875] [Tue Dec 27 12:17:49 2016]
[warning]: _connect: to server whois.iana.org http://whois.iana.org
failed, trying again… at /opt/rt4/local/plugins/RT-IR/lib/RT/IR.pm line
656. (/usr/local/share/perl5/Carp.pm:169)[5875] [Tue Dec 27 12:18:20 2016]
[warning]: _connect: to server whois.iana.org http://whois.iana.org
failed, trying again… at /opt/rt4/local/plugins/RT-IR/lib/RT/IR.pm line
656. (/usr/local/share/perl5/Carp.pm:169)[5875] [Tue Dec 27 12:18:51 2016]
[warning]: Failed to connect to host [whois.iana.org
http://whois.iana.org] at /opt/rt4/local/plugins/RT-IR/lib/RT/IR.pm line
656. (/usr/local/share/perl5/Carp.pm:169)[5875] [Tue Dec 27 12:18:51 2016]
[warning]: query: unable to obtain socket at
/opt/rt4/local/plugins/RT-IR/lib/RT/IR.pm line 656.
(/usr/local/share/perl5/Carp.pm:169)[5875] [Tue Dec 27 12:18:51 2016]
[warning]: Destroying Net::Whois::RIPE at
/opt/rt4/local/plugins/RT-IR/html/RTIR/Tools/Elements/ToolResultsWhois line
128. (/usr/local/share/perl5/Carp.pm:169)------------Thank you for your
help.