System error

error:  Can't use string ("index") as a HASH ref while "strict refs" in use at /var/graphisoft/www/learning/online_certification/BIM/index.html line 14.
context: 
... 
10:  <div style="float:right">
11:  <form action="../session.html" method="post" class="starter">
12:  <input type="hidden" name="auth" value="0"/>
13:  <input type="hidden" name="lang" value="bim11"/>
14:  <button type="button" value="<% $_->{label} %>" style="width:20em;text-align:left" onclick="this.form.submit()">
15:  <span class="gsflag gsflag-gb" title="English"></span>
16:  Go to Online BIM assessment
17:  </button>
18:  </form>
... 
code stack:  /var/graphisoft/www/learning/online_certification/BIM/index.html:14
/usr/share/perl5/HTML/Mason/Request.pm:951
/run/Mason/obj/1693244019/learning/online_certification/BIM/index.html.obj:6
/var/graphisoft/www/autohandler:11
raw error






























Can't use string ("index") as a HASH ref while "strict refs" in use at /var/graphisoft/www/learning/online_certification/BIM/index.html line 14.


Trace begun at /usr/share/perl5/HTML/Mason/Exceptions.pm line 129
HTML::Mason::Exceptions::rethrow_exception('Can\'t use string ("index") as a HASH ref while "strict refs" in use at /var/graphisoft/www/learning/online_certification/BIM/index.html line 14.^J') called at /var/graphisoft/www/learning/online_certification/BIM/index.html line 14
HTML::Mason::Commands::__ANON__ at /usr/share/perl5/HTML/Mason/Component.pm line 160
HTML::Mason::Component::run_dynamic_sub('HTML::Mason::Component::FileBased=HASH(0x7f04c61b0318)', 'main') called at /usr/share/perl5/HTML/Mason/Request.pm line 951
HTML::Mason::Request::call_dynamic('MasonX::Request::WithApacheSession=HASH(0x7f04c44e9558)', 'main') called at /run/Mason/obj/1693244019/learning/online_certification/BIM/index.html.obj 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(0x7f04c61b0318)') called at /usr/share/perl5/HTML/Mason/Request.pm line 1300
eval {...} at /usr/share/perl5/HTML/Mason/Request.pm line 1295
HTML::Mason::Request::comp(undef, undef, undef) called at /usr/share/perl5/HTML/Mason/Request.pm line 958
HTML::Mason::Request::call_next('MasonX::Request::WithApacheSession=HASH(0x7f04c44e9558)') called at /var/graphisoft/www/autohandler line 11
HTML::Mason::Commands::__ANON__ at /usr/share/perl5/HTML/Mason/Component.pm line 138
HTML::Mason::Component::run('HTML::Mason::Component::FileBased=HASH(0x7f04d097bd90)') called at /usr/share/perl5/HTML/Mason/Request.pm line 1300
eval {...} at /usr/share/perl5/HTML/Mason/Request.pm line 1295
HTML::Mason::Request::comp(undef, undef, undef) 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('MasonX::Request::WithApacheSession=HASH(0x7f04c44e9558)') called at /usr/share/perl5/HTML/Mason/ApacheHandler.pm line 165
HTML::Mason::Request::ApacheHandler::exec('MasonX::Request::WithApacheSession=HASH(0x7f04c44e9558)') called at /usr/share/perl5/MasonX/Request/WithApacheSession.pm line 130
MasonX::Request::WithApacheSession::exec('MasonX::Request::WithApacheSession=HASH(0x7f04c44e9558)') called at /usr/share/perl5/HTML/Mason/ApacheHandler.pm line 831
HTML::Mason::ApacheHandler::handle_request('HTML::Mason::ApacheHandler=HASH(0x7f0515ab97d8)', 'Apache2::RequestRec=SCALAR(0x7f04d471a968)') called at /var/graphisoft/progs/Mason_graphisoft_2.pl line 181
HTML::Mason::graphisoft_handler('Apache2::RequestRec=SCALAR(0x7f04d471a968)') called at -e line 0
eval {...} at -e line 0