System error

error:  Can't call method "disconnect" on an undefined value at /Programs/MathSciNet/Current/mason/msc/syshandler line 3, <_GEN_1> line 571.
context: 
1:  <%cleanup>
2:  # Destroy connection after each request is complete
3:  $dbh->disconnect;
4: 
5:  ## Destroy ingres connection
6:  if ($c{'config'}->{'MRspecific'} eq 'true') {
7:  try {
... 
code stack:  /Programs/MathSciNet/Current/mason/msc/syshandler:3
raw error






























Can't call method "disconnect" on an undefined value at /Programs/MathSciNet/Current/mason/msc/syshandler line 3, <_GEN_1> line 571.


Trace begun at /System/Links/Libraries/perl5/site_perl/5.12.1/HTML/Mason/Exceptions.pm line 129
HTML::Mason::Exceptions::rethrow_exception('Can\'t call method "disconnect" on an undefined value at /Programs/MathSciNet/Current/mason/msc/syshandler line 3, <_GEN_1> line 571.^J') called at /Programs/MathSciNet/Current/mason/msc/syshandler line 3
HTML::Mason::Commands::__ANON__ at /System/Links/Libraries/perl5/site_perl/5.12.1/HTML/Mason/Component.pm line 138
HTML::Mason::Component::run('HTML::Mason::Component::FileBased=HASH(0xbc5b678)') called at /System/Links/Libraries/perl5/site_perl/5.12.1/HTML/Mason/Request.pm line 1300
eval {...} at /System/Links/Libraries/perl5/site_perl/5.12.1/HTML/Mason/Request.pm line 1295
HTML::Mason::Request::comp(undef, undef, undef) called at /System/Links/Libraries/perl5/site_perl/5.12.1/HTML/Mason/Request.pm line 484
eval {...} at /System/Links/Libraries/perl5/site_perl/5.12.1/HTML/Mason/Request.pm line 484
eval {...} at /System/Links/Libraries/perl5/site_perl/5.12.1/HTML/Mason/Request.pm line 436
HTML::Mason::Request::exec('HTML::Mason::Request::ApacheHandler=HASH(0xba1bdc8)') called at /System/Links/Libraries/perl5/site_perl/5.12.1/HTML/Mason/ApacheHandler.pm line 168
HTML::Mason::Request::ApacheHandler::exec('HTML::Mason::Request::ApacheHandler=HASH(0xba1bdc8)') called at /System/Links/Libraries/perl5/site_perl/5.12.1/HTML/Mason/ApacheHandler.pm line 825
HTML::Mason::ApacheHandler::handle_request('HTML::Mason::ApacheHandler=HASH(0xb922c88)', 'Apache2::RequestRec=SCALAR(0xbabf6d0)') called at (eval 1007) line 8
HTML::Mason::ApacheHandler::handler('HTML::Mason::ApacheHandler', 'Apache2::RequestRec=SCALAR(0xbabf6d0)') called at -e line 0
eval {...} at -e line 0