System error

error:  Illegal division by zero at /Programs/MathSciNet/Current/mason/mathscinet/MRAuthorID/dhandler line 301, <_GEN_1> line 9611.
context: 
... 
297:  my $class = $pubin->[$i]->{description};
298: 
299:  $class = &tex2html($class);
300: 
301:  my ($fontsize,$color) = tagAttr($cnt/$maxcnt);
302:  </%perl>
303:  <li><a style="font-size: <% $fontsize %>%; color: <% $color %>;" title="Primary Class <% $pc %>"><% $class %></a></li>
304:  <%perl>
305:  }
... 
code stack:  /Programs/MathSciNet/Current/mason/mathscinet/MRAuthorID/dhandler:301
/System/Links/Libraries/perl5/site_perl/5.12.1/HTML/Mason/Request.pm:951
/dsk2/mason/var/mathscinet/MRAuthorID/obj/991088776/MRAuthorID/dhandler.obj:52
/Programs/MathSciNet/Current/mason/mathscinet/autohandler:174
/Programs/MathSciNet/Current/mason/mathscinet/comp/language_filter.mas:21
/Programs/MathSciNet/Current/mason/mathscinet/autohandler:175
/Programs/MathSciNet/Current/mason/mathscinet/syshandler:161
raw error






























Illegal division by zero at /Programs/MathSciNet/Current/mason/mathscinet/MRAuthorID/dhandler line 301, <_GEN_1> line 9611.


Trace begun at /System/Links/Libraries/perl5/site_perl/5.12.1/HTML/Mason/Exceptions.pm line 129
HTML::Mason::Exceptions::rethrow_exception('Illegal division by zero at /Programs/MathSciNet/Current/mason/mathscinet/MRAuthorID/dhandler line 301, <_GEN_1> line 9611.^J') called at /Programs/MathSciNet/Current/mason/mathscinet/MRAuthorID/dhandler line 301
HTML::Mason::Commands::__ANON__ at /System/Links/Libraries/perl5/site_perl/5.12.1/HTML/Mason/Component.pm line 160
HTML::Mason::Component::run_dynamic_sub('HTML::Mason::Component::FileBased=HASH(0xa8c7618)', 'main') called at /System/Links/Libraries/perl5/site_perl/5.12.1/HTML/Mason/Request.pm line 951
HTML::Mason::Request::call_dynamic('HTML::Mason::Request::ApacheHandler=HASH(0xae00730)', 'main') called at /dsk2/mason/var/mathscinet/MRAuthorID/obj/991088776/MRAuthorID/dhandler.obj line 52
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(0xa8c7618)') called at /System/Links/Libraries/perl5/site_perl/5.12.1/HTML/Mason/Request.pm line 1305
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 958
HTML::Mason::Request::call_next('HTML::Mason::Request::ApacheHandler=HASH(0xae00730)') called at /Programs/MathSciNet/Current/mason/mathscinet/autohandler line 174
HTML::Mason::Commands::__ANON__ at /System/Links/Libraries/perl5/site_perl/5.12.1/HTML/Mason/Request.pm line 1383
eval {...} at /System/Links/Libraries/perl5/site_perl/5.12.1/HTML/Mason/Request.pm line 1383
HTML::Mason::Request::content('HTML::Mason::Request::ApacheHandler=HASH(0xae00730)') called at /Programs/MathSciNet/Current/mason/mathscinet/comp/language_filter.mas line 21
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(0xaa15490)') called at /System/Links/Libraries/perl5/site_perl/5.12.1/HTML/Mason/Request.pm line 1305
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 /Programs/MathSciNet/Current/mason/mathscinet/autohandler line 175
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(0xad13548)') called at /System/Links/Libraries/perl5/site_perl/5.12.1/HTML/Mason/Request.pm line 1305
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 958
HTML::Mason::Request::call_next('HTML::Mason::Request::ApacheHandler=HASH(0xae00730)') called at /Programs/MathSciNet/Current/mason/mathscinet/syshandler line 161
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(0xae183e0)') 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(0xae00730)') 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(0xae00730)') 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(0xacf65b0)', 'Apache2::RequestRec=SCALAR(0xab43570)') called at (eval 1144) line 8
HTML::Mason::ApacheHandler::handler('HTML::Mason::ApacheHandler', 'Apache2::RequestRec=SCALAR(0xab43570)') called at -e line 0
eval {...} at -e line 0