System error

error:  Can't call method "get_name" on an undefined value at /home/omskzdes/omskzdes/sources/comps/www/print.html line 15.
context: 
... 
11:  </head>
12:  <body>
13:  <h1><img src="/i/logo.png" alt="<% $CONFIG->get_project_name('public') %>"></h1>
14:  <p><small>
15:  <% $CONTENT->get_section_by_id( $doc->get_section() )->get_name() %> &#8226;
16:  <% pgstr_to_str2($doc->get_dtime(), "%e %B %Y, %H:%M") %>
17:  </small></p>
18:  <h2><% $doc->get_name() %></h2>
19:  %
... 
code stack:  /home/omskzdes/omskzdes/sources/comps/www/print.html:15
/home/omskzdes/omskzdes/sources/comps/www/autohandler:1
raw error






























Can't call method "get_name" on an undefined value at /home/omskzdes/omskzdes/sources/comps/www/print.html line 15.


Trace begun at /usr/local/share/perl/5.32.1/HTML/Mason/Exceptions.pm line 125
HTML::Mason::Exceptions::rethrow_exception('Can\'t call method "get_name" on an undefined value at /home/omskzdes/omskzdes/sources/comps/www/print.html line 15.^J') called at /home/omskzdes/omskzdes/sources/comps/www/print.html line 15
HTML::Mason::Commands::__ANON__ at /usr/local/share/perl/5.32.1/HTML/Mason/Component.pm line 135
HTML::Mason::Component::run('HTML::Mason::Component::FileBased=HASH(0x562e2e896a88)') called at /usr/local/share/perl/5.32.1/HTML/Mason/Request.pm line 1302
eval {...} at /usr/local/share/perl/5.32.1/HTML/Mason/Request.pm line 1292
HTML::Mason::Request::comp(undef, undef) called at /home/omskzdes/omskzdes/sources/comps/www/autohandler line 1
HTML::Mason::Commands::__ANON__ at /usr/local/share/perl/5.32.1/HTML/Mason/Component.pm line 135
HTML::Mason::Component::run('HTML::Mason::Component::FileBased=HASH(0x562e2e80bc20)') called at /usr/local/share/perl/5.32.1/HTML/Mason/Request.pm line 1300
eval {...} at /usr/local/share/perl/5.32.1/HTML/Mason/Request.pm line 1292
HTML::Mason::Request::comp(undef, undef, undef) called at /usr/local/share/perl/5.32.1/HTML/Mason/Request.pm line 481
eval {...} at /usr/local/share/perl/5.32.1/HTML/Mason/Request.pm line 481
eval {...} at /usr/local/share/perl/5.32.1/HTML/Mason/Request.pm line 433
HTML::Mason::Request::exec('HTML::Mason::Request::ApacheHandler=HASH(0x562e2eb2bde8)') called at /usr/local/share/perl/5.32.1/HTML/Mason/ApacheHandler.pm line 168
HTML::Mason::Request::ApacheHandler::exec('HTML::Mason::Request::ApacheHandler=HASH(0x562e2eb2bde8)') called at /usr/local/share/perl/5.32.1/HTML/Mason/ApacheHandler.pm line 825
HTML::Mason::ApacheHandler::handle_request('HTML::Mason::ApacheHandler=HASH(0x562e2e8064f8)', 'Apache2::RequestRec=SCALAR(0x562e2ed65b88)') called at /home/omskzdes/makeidea/sources/lib/MakeIdea/BK/Core/handler.pl line 85
eval {...} at /home/omskzdes/makeidea/sources/lib/MakeIdea/BK/Core/handler.pl line 81
MakeIdea::BK::Core::Handler::Mason::handler('Apache2::RequestRec=SCALAR(0x562e2ed65b88)') called at /home/omskzdes/omskzdes/sources/lib/OmskHere/Core/CoreService.pm line 35
eval {...} at /home/omskzdes/omskzdes/sources/lib/OmskHere/Core/CoreService.pm line 35
OmskHere::Core::CoreService::print('Apache2::RequestRec=SCALAR(0x562e2edc3698)') called at -e line 0
eval {...} at -e line 0