System error

error:  Can't call method "do" on an undefined value at /srv/www/crosbi/bib/_lib/_get_user.x line 24.
context: 
... 
20:  use Apache2::Cookie;
21:  use Digest::SHA;
22: 
23:  $dbh = $m -> comp('_dbbibs.x');
24:  $dbh -> do("SET client_encoding TO UTF8");
25:  </%init>
26:  <%perl>
27:  $kolacic = $m -> comp('_cookie_aai.x');
28:  $kukisif = $m -> comp('_cookie_sif.x');
... 
code stack:  /srv/www/crosbi/bib/_lib/_get_user.x:24
/srv/www/crosbi/bib/_upis-odjava.m:6
/srv/www/crosbi/bib/autohandler:34
raw error






























Can't call method "do" on an undefined value at /srv/www/crosbi/bib/_lib/_get_user.x line 24.


Trace begun at /usr/share/perl5/HTML/Mason/Exceptions.pm line 125
HTML::Mason::Exceptions::rethrow_exception('Can\'t call method "do" on an undefined value at /srv/www/crosbi/bib/_lib/_get_user.x line 24.^J') called at /srv/www/crosbi/bib/_lib/_get_user.x line 24
HTML::Mason::Commands::__ANON__ at /usr/share/perl5/HTML/Mason/Component.pm line 135
HTML::Mason::Component::run('HTML::Mason::Component::FileBased=HASH(0x56547406de28)') called at /usr/share/perl5/HTML/Mason/Request.pm line 1300
eval {...} at /usr/share/perl5/HTML/Mason/Request.pm line 1292
HTML::Mason::Request::comp(undef, undef) called at /srv/www/crosbi/bib/_upis-odjava.m line 6
HTML::Mason::Commands::__ANON__ at /usr/share/perl5/HTML/Mason/Component.pm line 135
HTML::Mason::Component::run('HTML::Mason::Component::FileBased=HASH(0x5654740411c0)') called at /usr/share/perl5/HTML/Mason/Request.pm line 1302
eval {...} at /usr/share/perl5/HTML/Mason/Request.pm line 1292
HTML::Mason::Request::comp(undef, undef) called at /srv/www/crosbi/bib/autohandler line 34
HTML::Mason::Commands::__ANON__('projekt', 004001) called at /usr/share/perl5/HTML/Mason/Component.pm line 135
HTML::Mason::Component::run('HTML::Mason::Component::FileBased=HASH(0x5654738fe2c0)', 'projekt', 004001) called at /usr/share/perl5/HTML/Mason/Request.pm line 1300
eval {...} at /usr/share/perl5/HTML/Mason/Request.pm line 1292
HTML::Mason::Request::comp(undef, undef, undef, 'projekt', 004001) called at /usr/share/perl5/HTML/Mason/Request.pm line 481
eval {...} at /usr/share/perl5/HTML/Mason/Request.pm line 481
eval {...} at /usr/share/perl5/HTML/Mason/Request.pm line 433
HTML::Mason::Request::exec('HTML::Mason::Request::ApacheHandler=HASH(0x56547429e808)') called at /usr/share/perl5/HTML/Mason/ApacheHandler.pm line 165
HTML::Mason::Request::ApacheHandler::exec('HTML::Mason::Request::ApacheHandler=HASH(0x56547429e808)') called at /usr/share/perl5/HTML/Mason/ApacheHandler.pm line 831
HTML::Mason::ApacheHandler::handle_request('HTML::Mason::ApacheHandler=HASH(0x565473c6da28)', 'Apache2::RequestRec=SCALAR(0x5654741f8008)') called at (eval 28) line 8
HTML::Mason::ApacheHandler::handler('HTML::Mason::ApacheHandler', 'Apache2::RequestRec=SCALAR(0x5654741f8008)') called at -e line 0
eval {...} at -e line 0