System error

error:  Can't locate object method "header_in" via package "Apache2::RequestRec" at /webroot/malcolmmason/occitan.net/contact.html line 30.
context: 
... 
26:  <p align="center" class="txt">Will you please complete the fields : &ldquo;Name&rdquo; &amp; &ldquo;Email&rdquo;?<br />
27:  <b>Remember</b>, without this data I can&#8217;t reply to you!</p>
28:  <p>&nbsp;</p>
29:  % } else {
30:  % $referer = $r->header_in("Referer") if $r->header_in("Referer");
31:  % }
32:  <form method="post" enctype="multipart/form-data">
33:  <input type="hidden" name="referer" value="<% $referer %>">
34: 
... 
code stack:  /webroot/malcolmmason/occitan.net/contact.html:30
/webroot/malcolmmason/occitan.net/mason/heading.mas:13
/webroot/malcolmmason/occitan.net/autohandler:53
raw error






























Can't locate object method "header_in" via package "Apache2::RequestRec" at /webroot/malcolmmason/occitan.net/contact.html line 30.


Trace begun at /usr/share/perl5/HTML/Mason/Exceptions.pm line 129
HTML::Mason::Exceptions::rethrow_exception('Can\'t locate object method "header_in" via package "Apache2::RequestRec" at /webroot/malcolmmason/occitan.net/contact.html line 30.^J') called at /webroot/malcolmmason/occitan.net/contact.html line 30
HTML::Mason::Commands::__ANON__ at /usr/share/perl5/HTML/Mason/Component.pm line 135
HTML::Mason::Component::run('HTML::Mason::Component::FileBased=HASH(0xa9f0fe0)') called at /usr/share/perl5/HTML/Mason/Request.pm line 1278
eval {...} at /usr/share/perl5/HTML/Mason/Request.pm line 1268
HTML::Mason::Request::comp(undef, undef, undef) called at /usr/share/perl5/HTML/Mason/Request.pm line 937
HTML::Mason::Request::call_next('HTML::Mason::Request::ApacheHandler=HASH(0x938c5c0)') called at /webroot/malcolmmason/occitan.net/mason/heading.mas line 13
HTML::Mason::Commands::__ANON__ at /usr/share/perl5/HTML/Mason/Component.pm line 135
HTML::Mason::Component::run('HTML::Mason::Component::FileBased=HASH(0xa9f1470)') called at /usr/share/perl5/HTML/Mason/Request.pm line 1278
eval {...} at /usr/share/perl5/HTML/Mason/Request.pm line 1268
HTML::Mason::Request::comp(undef, undef, undef) called at /usr/share/perl5/HTML/Mason/Request.pm line 937
HTML::Mason::Request::call_next('HTML::Mason::Request::ApacheHandler=HASH(0x938c5c0)') called at /webroot/malcolmmason/occitan.net/autohandler line 53
HTML::Mason::Commands::__ANON__ at /usr/share/perl5/HTML/Mason/Component.pm line 135
HTML::Mason::Component::run('HTML::Mason::Component::FileBased=HASH(0xa9e28b8)') called at /usr/share/perl5/HTML/Mason/Request.pm line 1276
eval {...} at /usr/share/perl5/HTML/Mason/Request.pm line 1268
HTML::Mason::Request::comp(undef, undef, undef) called at /usr/share/perl5/HTML/Mason/Request.pm line 467
eval {...} at /usr/share/perl5/HTML/Mason/Request.pm line 467
eval {...} at /usr/share/perl5/HTML/Mason/Request.pm line 419
HTML::Mason::Request::exec('HTML::Mason::Request::ApacheHandler=HASH(0x938c5c0)') called at /usr/share/perl5/HTML/Mason/ApacheHandler.pm line 165
HTML::Mason::Request::ApacheHandler::exec('HTML::Mason::Request::ApacheHandler=HASH(0x938c5c0)') called at /usr/share/perl5/HTML/Mason/ApacheHandler.pm line 831
HTML::Mason::ApacheHandler::handle_request('HTML::Mason::ApacheHandler=HASH(0xa976d78)', 'Apache2::RequestRec=SCALAR(0x938eda0)') called at (eval 795) line 8
HTML::Mason::ApacheHandler::handler('HTML::Mason::ApacheHandler', 'Apache2::RequestRec=SCALAR(0x938eda0)') called at -e line 0
eval {...} at -e line 0