System error

error:  install_driver(Pg) failed: Can't locate DBD/Pg.pm in @INC (you may need to install the DBD::Pg module) (@INC contains: /etc/perl /usr/local/lib/x86_64-linux-gnu/perl/5.20.2 /usr/local/share/perl/5.20.2 /usr/lib/x86_64-linux-gnu/perl5/5.20 /usr/share/perl5 /usr/lib/x86_64-linux-gnu/perl/5.20 /usr/share/perl/5.20 /usr/local/lib/site_perl . /etc/apache2) at (eval 73) line 3.

Stack:
[(eval 73):3]
[/usr/lib/x86_64-linux-gnu/perl5/5.20/DBI.pm:652]
[/usr/lib/x86_64-linux-gnu/perl5/5.20/DBI.pm:581]
[/usr/local/share/perl/5.20.2/WDBI.pm:114]
[/home/fridav/huda/fridav/htdocs/srv/session.mas:11]
[/home/fridav/huda/fridav/htdocs/srv/map/dhandler:3]
Perhaps the DBD::Pg perl module hasn't been fully installed,
or perhaps the capitalisation of 'Pg' isn't right.
Available drivers: DBM, ExampleP, File, Gofer, Proxy, Sponge, mysql.
at /usr/local/share/perl/5.20.2/WDBI.pm line 114.
context: 
... 
162:  local @CARP_NOT = $cgc ? $cgc->() : caller();
163:  shortmess_heavy(@_);
164:  }
165: 
166:  sub croak { die shortmess @_ }
167:  sub confess { die longmess @_ }
168:  sub carp { warn shortmess @_ }
169:  sub cluck { warn longmess @_ }
170: 
... 
code stack:  /usr/share/perl/5.20/Carp.pm:166
/usr/lib/x86_64-linux-gnu/perl5/5.20/DBI.pm:807
/usr/lib/x86_64-linux-gnu/perl5/5.20/DBI.pm:652
/usr/lib/x86_64-linux-gnu/perl5/5.20/DBI.pm:581
/usr/local/share/perl/5.20.2/WDBI.pm:114
/home/fridav/huda/fridav/htdocs/srv/session.mas:11
/home/fridav/huda/fridav/htdocs/srv/map/dhandler:3
raw error






























install_driver(Pg) failed: Can't locate DBD/Pg.pm in @INC (you may need to install the DBD::Pg module) (@INC contains: /etc/perl /usr/local/lib/x86_64-linux-gnu/perl/5.20.2 /usr/local/share/perl/5.20.2 /usr/lib/x86_64-linux-gnu/perl5/5.20 /usr/share/perl5 /usr/lib/x86_64-linux-gnu/perl/5.20 /usr/share/perl/5.20 /usr/local/lib/site_perl . /etc/apache2) at (eval 73) line 3.

Stack:
  [(eval 73):3]
  [/usr/lib/x86_64-linux-gnu/perl5/5.20/DBI.pm:652]
  [/usr/lib/x86_64-linux-gnu/perl5/5.20/DBI.pm:581]
  [/usr/local/share/perl/5.20.2/WDBI.pm:114]
  [/home/fridav/huda/fridav/htdocs/srv/session.mas:11]
  [/home/fridav/huda/fridav/htdocs/srv/map/dhandler:3]
Perhaps the DBD::Pg perl module hasn't been fully installed,
or perhaps the capitalisation of 'Pg' isn't right.
Available drivers: DBM, ExampleP, File, Gofer, Proxy, Sponge, mysql.
 at /usr/local/share/perl/5.20.2/WDBI.pm line 114.


Trace begun at /usr/share/perl5/HTML/Mason/Exceptions.pm line 129
HTML::Mason::Exceptions::rethrow_exception('install_driver(Pg) failed: Can\'t locate DBD/Pg.pm in @INC (you may need to install the DBD::Pg module) (@INC contains: /etc/perl /usr/local/lib/x86_64-linux-gnu/perl/5.20.2 /usr/local/share/perl/5.20.2 /usr/lib/x86_64-linux-gnu/perl5/5.20 /usr/share/perl5 /usr/lib/x86_64-linux-gnu/perl/5.20 /usr/share/perl/5.20 /usr/local/lib/site_perl . /etc/apache2) at (eval 73) line 3.^J^JStack:^J  [(eval 73):3]^J  [/usr/lib/x86_64-linux-gnu/perl5/5.20/DBI.pm:652]^J  [/usr/lib/x86_64-linux-gnu/perl5/5.20/DBI.pm:581]^J  [/usr/local/share/perl/5.20.2/WDBI.pm:114]^J  [/home/fridav/huda/fridav/htdocs/srv/session.mas:11]^J  [/home/fridav/huda/fridav/htdocs/srv/map/dhandler:3]^JPerhaps the DBD::Pg perl module hasn\'t been fully installed,^Jor perhaps the capitalisation of \'Pg\' isn\'t right.^JAvailable drivers: DBM, ExampleP, File, Gofer, Proxy, Sponge, mysql.^J at /usr/local/share/perl/5.20.2/WDBI.pm line 114.^J') called at /usr/share/perl/5.20/Carp.pm line 166
Carp::croak('install_driver(Pg) failed: Can\'t locate DBD/Pg.pm in @INC (you may need to install the DBD::Pg module) (@INC contains: /etc/perl /usr/local/lib/x86_64-linux-gnu/perl/5.20.2 /usr/local/share/perl/5.20.2 /usr/lib/x86_64-linux-gnu/perl5/5.20 /usr/share/perl5 /usr/lib/x86_64-linux-gnu/perl/5.20 /usr/share/perl/5.20 /usr/local/lib/site_perl . /etc/apache2) at (eval 73) line 3.^J^JStack:^J  [(eval 73):3]^J  [/usr/lib/x86_64-linux-gnu/perl5/5.20/DBI.pm:652]^J  [/usr/lib/x86_64-linux-gnu/perl5/5.20/DBI.pm:581]^J  [/usr/local/share/perl/5.20.2/WDBI.pm:114]^J  [/home/fridav/huda/fridav/htdocs/srv/session.mas:11]^J  [/home/fridav/huda/fridav/htdocs/srv/map/dhandler:3]^JPerhaps the DBD::Pg perl module hasn\'t been fully installed,^Jor perhaps the capitalisation of \'Pg\' isn\'t right.^JAvailable drivers: DBM, ExampleP, File, Gofer, Proxy, Sponge, mysql.^J') called at /usr/lib/x86_64-linux-gnu/perl5/5.20/DBI.pm line 807
DBI::install_driver('DBI', 'Pg') called at /usr/lib/x86_64-linux-gnu/perl5/5.20/DBI.pm line 652
DBI::connect('DBI', 'dbi:Pg:dbname=ljudmila;host=milci;port=5432;', 'frida_data', 'bonec', 'HASH(0x559d6fc97ef0)') called at /usr/lib/x86_64-linux-gnu/perl5/5.20/DBI.pm line 581
DBI::connect_cached('DBI', 'dbi:Pg:dbname=ljudmila;host=milci;port=5432;', 'frida_data', 'bonec') called at /usr/local/share/perl/5.20.2/WDBI.pm line 114
WDBI::connect('fridav', 'ARRAY(0x559d6ea9f550)', undef) called at /home/fridav/huda/fridav/htdocs/srv/session.mas line 11
HTML::Mason::Commands::__ANON__ at /usr/share/perl5/HTML/Mason/Component.pm line 138
HTML::Mason::Component::run('HTML::Mason::Component::FileBased=HASH(0x559d6f2bda50)') called at /usr/share/perl5/HTML/Mason/Request.pm line 1305
eval {...} at /usr/share/perl5/HTML/Mason/Request.pm line 1295
HTML::Mason::Request::comp(undef, undef) called at /home/fridav/huda/fridav/htdocs/srv/map/dhandler line 3
HTML::Mason::Commands::__ANON__ at /usr/share/perl5/HTML/Mason/Component.pm line 138
HTML::Mason::Component::run('HTML::Mason::Component::FileBased=HASH(0x559d6eb67cd0)') called at /usr/share/perl5/HTML/Mason/Request.pm line 1303
eval {...} at /usr/share/perl5/HTML/Mason/Request.pm line 1295
HTML::Mason::Request::comp(undef, undef, undef) called at /usr/share/perl5/HTML/Mason/Request.pm line 484
eval {...} at /usr/share/perl5/HTML/Mason/Request.pm line 484
eval {...} at /usr/share/perl5/HTML/Mason/Request.pm line 436
HTML::Mason::Request::exec('HTML::Mason::Request::ApacheHandler=HASH(0x559d6ea9f250)') called at /usr/share/perl5/HTML/Mason/ApacheHandler.pm line 165
HTML::Mason::Request::ApacheHandler::exec('HTML::Mason::Request::ApacheHandler=HASH(0x559d6ea9f250)') called at /usr/share/perl5/HTML/Mason/ApacheHandler.pm line 831
HTML::Mason::ApacheHandler::handle_request('HTML::Mason::ApacheHandler=HASH(0x559d6f2c41d8)', 'Apache2::RequestRec=SCALAR(0x559d6e4277b8)') called at (eval 23) line 8
HTML::Mason::ApacheHandler::handler('HTML::Mason::ApacheHandler', 'Apache2::RequestRec=SCALAR(0x559d6e4277b8)') called at -e line 0
eval {...} at -e line 0