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 129
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 138
HTML::Mason::Component::run('HTML::Mason::Component::FileBased=HASH(0x5616586c8040)') 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) called at /srv/www/crosbi/bib/_upis-odjava.m line 6
HTML::Mason::Commands::__ANON__ at /usr/share/perl5/HTML/Mason/Component.pm line 138
HTML::Mason::Component::run('HTML::Mason::Component::FileBased=HASH(0x561658640cf8)') 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 /srv/www/crosbi/bib/autohandler line 34
HTML::Mason::Commands::__ANON__('rad', 351905) called at /usr/share/perl5/HTML/Mason/Component.pm line 138
HTML::Mason::Component::run('HTML::Mason::Component::FileBased=HASH(0x561657a09e08)', 'rad', 351905) 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, 'rad', 351905) 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(0x56165890f9c8)') called at /usr/share/perl5/HTML/Mason/ApacheHandler.pm line 165
HTML::Mason::Request::ApacheHandler::exec('HTML::Mason::Request::ApacheHandler=HASH(0x56165890f9c8)') called at /usr/share/perl5/HTML/Mason/ApacheHandler.pm line 831
HTML::Mason::ApacheHandler::handle_request('HTML::Mason::ApacheHandler=HASH(0x561657a03f88)', 'Apache2::RequestRec=SCALAR(0x56165890f920)') called at (eval 26) line 8
HTML::Mason::ApacheHandler::handler('HTML::Mason::ApacheHandler', 'Apache2::RequestRec=SCALAR(0x56165890f920)') called at -e line 0
eval {...} at -e line 0