System error

error:  Can't call method "selectrow_array" on an undefined value at /home/hosting/milrussia/lib/mr/core.pm line 63.
context: 
... 
59: 
60:  sub getrow{
61: 
62:  foreach my $row (@_) { mr::core::std_out("GETROW: ". $row);};
63:  my @rz = $mr::dbh->selectrow_array(@_);
64:  if ($mr::dbh->errstr) { errlog($mr::dbh->errstr."; SQL \"@_\"", 2) }
65:  return @rz;
66:  }
67: 
... 
code stack:  /home/hosting/milrussia/lib/mr/core.pm:63
/home/hosting/milrussia/lib/mr/tree.pm:94
/home/hosting/militera.org/html/0/scripts/_node-menu-divs.html:1
/usr/local/share/perl/5.28.1/HTML/Mason/Request.pm:948
/home/hosting/militera.org/mason/obj/2011159162/0/scripts/_node-menu-divs.html.obj:6
/home/hosting/militera.org/html/0/include/top-meta.html:16
/home/hosting/militera.org/html/wars/index.html:23
/usr/local/share/perl/5.28.1/HTML/Mason/Request.pm:948
/home/hosting/militera.org/mason/obj/2011159162/wars/index.html.obj:6
raw error






























Can't call method "selectrow_array" on an undefined value at /home/hosting/milrussia/lib/mr/core.pm line 63.


Trace begun at /usr/local/share/perl/5.28.1/HTML/Mason/Exceptions.pm line 125
HTML::Mason::Exceptions::rethrow_exception('Can\'t call method "selectrow_array" on an undefined value at /home/hosting/milrussia/lib/mr/core.pm line 63.^J') called at /home/hosting/milrussia/lib/mr/core.pm line 63
mr::core::getrow('select id,name,edname,nbname,parent,class,record_key,template,sort from trees where id=?', undef, 6248) called at /home/hosting/milrussia/lib/mr/tree.pm line 94
mr::tree::node_by_id(6248) called at /home/hosting/militera.org/html/0/scripts/_node-menu-divs.html line 1
HTML::Mason::Commands::__ANON__('node', 6248) called at /usr/local/share/perl/5.28.1/HTML/Mason/Component.pm line 157
HTML::Mason::Component::run_dynamic_sub('HTML::Mason::Component::FileBased=HASH(0x55f869d24540)', 'main', 'node', 6248) called at /usr/local/share/perl/5.28.1/HTML/Mason/Request.pm line 948
HTML::Mason::Request::call_dynamic('HTML::Mason::Request::ApacheHandler=HASH(0x55f869c640d0)', 'main', 'node', 6248) called at /home/hosting/militera.org/mason/obj/2011159162/0/scripts/_node-menu-divs.html.obj line 6
HTML::Mason::Commands::__ANON__('node', 6248) called at /usr/local/share/perl/5.28.1/HTML/Mason/Component.pm line 135
HTML::Mason::Component::run('HTML::Mason::Component::FileBased=HASH(0x55f869d24540)', 'node', 6248) called at /usr/local/share/perl/5.28.1/HTML/Mason/Request.pm line 1302
eval {...} at /usr/local/share/perl/5.28.1/HTML/Mason/Request.pm line 1292
HTML::Mason::Request::comp(undef, undef, 'node', 6248) called at /home/hosting/militera.org/html/0/include/top-meta.html line 16
HTML::Mason::Commands::__ANON__ at /usr/local/share/perl/5.28.1/HTML/Mason/Component.pm line 135
HTML::Mason::Component::run('HTML::Mason::Component::FileBased=HASH(0x55f869d1a7c0)') called at /usr/local/share/perl/5.28.1/HTML/Mason/Request.pm line 1302
eval {...} at /usr/local/share/perl/5.28.1/HTML/Mason/Request.pm line 1292
HTML::Mason::Request::comp(undef, undef) called at /home/hosting/militera.org/html/wars/index.html line 23
HTML::Mason::Commands::__ANON__('subdiv', 'civil') called at /usr/local/share/perl/5.28.1/HTML/Mason/Component.pm line 157
HTML::Mason::Component::run_dynamic_sub('HTML::Mason::Component::FileBased=HASH(0x55f869c78870)', 'main', 'subdiv', 'civil') called at /usr/local/share/perl/5.28.1/HTML/Mason/Request.pm line 948
HTML::Mason::Request::call_dynamic('HTML::Mason::Request::ApacheHandler=HASH(0x55f869c640d0)', 'main', 'subdiv', 'civil') called at /home/hosting/militera.org/mason/obj/2011159162/wars/index.html.obj line 6
HTML::Mason::Commands::__ANON__('subdiv', 'civil') called at /usr/local/share/perl/5.28.1/HTML/Mason/Component.pm line 135
HTML::Mason::Component::run('HTML::Mason::Component::FileBased=HASH(0x55f869c78870)', 'subdiv', 'civil') called at /usr/local/share/perl/5.28.1/HTML/Mason/Request.pm line 1300
eval {...} at /usr/local/share/perl/5.28.1/HTML/Mason/Request.pm line 1292
HTML::Mason::Request::comp(undef, undef, undef, 'subdiv', 'civil') called at /usr/local/share/perl/5.28.1/HTML/Mason/Request.pm line 481
eval {...} at /usr/local/share/perl/5.28.1/HTML/Mason/Request.pm line 481
eval {...} at /usr/local/share/perl/5.28.1/HTML/Mason/Request.pm line 433
HTML::Mason::Request::exec('HTML::Mason::Request::ApacheHandler=HASH(0x55f869c640d0)') called at /usr/local/share/perl/5.28.1/HTML/Mason/ApacheHandler.pm line 168
HTML::Mason::Request::ApacheHandler::exec('HTML::Mason::Request::ApacheHandler=HASH(0x55f869c640d0)') called at /usr/local/share/perl/5.28.1/HTML/Mason/ApacheHandler.pm line 825
HTML::Mason::ApacheHandler::handle_request('HTML::Mason::ApacheHandler=HASH(0x55f86995ac88)', 'Apache2::RequestRec=SCALAR(0x55f868232e68)') called at (eval 23) line 8
HTML::Mason::ApacheHandler::handler('HTML::Mason::ApacheHandler', 'Apache2::RequestRec=SCALAR(0x55f868232e68)') called at -e line 0
eval {...} at -e line 0