System error

error:  Can't locate object method "header_out" via package "Apache2::RequestRec" at /product/share/bookfinder/site/about/mentions/index.mhtml line 100.
context: 
... 
96:  $m->clear_buffer;
97:  $r->method('GET');
98:  $r->headers_in->unset('Content-length');
99:  $r->content_type('text/html');
100:  $r->header_out( 'Location' => $ENV{BF_SITE_URL} . loc('/') );
101:  $m->abort(301);
102:  }
103: 
104:  my $key;
... 
code stack:  /product/share/bookfinder/site/about/mentions/index.mhtml:100
raw error






























Can't locate object method "header_out" via package "Apache2::RequestRec" at /product/share/bookfinder/site/about/mentions/index.mhtml line 100.


Trace begun at /usr/local/share/perl5/HTML/Mason/Exceptions.pm line 129
HTML::Mason::Exceptions::rethrow_exception('Can\'t locate object method "header_out" via package "Apache2::RequestRec" at /product/share/bookfinder/site/about/mentions/index.mhtml line 100.^J') called at /product/share/bookfinder/site/about/mentions/index.mhtml line 100
HTML::Mason::Commands::__ANON__ at /usr/local/share/perl5/HTML/Mason/Component.pm line 138
HTML::Mason::Component::run('HTML::Mason::Component::FileBased=HASH(0x7f181995e388)') called at /usr/local/share/perl5/HTML/Mason/Request.pm line 1300
eval {...} at /usr/local/share/perl5/HTML/Mason/Request.pm line 1295
HTML::Mason::Request::comp(undef, undef, undef) called at /usr/local/share/perl5/HTML/Mason/Request.pm line 484
eval {...} at /usr/local/share/perl5/HTML/Mason/Request.pm line 484
eval {...} at /usr/local/share/perl5/HTML/Mason/Request.pm line 436
HTML::Mason::Request::exec('HTML::Mason::Request::ApacheHandler=HASH(0x7f181b56f048)') called at /usr/local/share/perl5/HTML/Mason/ApacheHandler.pm line 168
HTML::Mason::Request::ApacheHandler::exec('HTML::Mason::Request::ApacheHandler=HASH(0x7f181b56f048)') called at /usr/local/share/perl5/HTML/Mason/ApacheHandler.pm line 825
HTML::Mason::ApacheHandler::handle_request('HTML::Mason::ApacheHandler=HASH(0x7f181474cbd8)', 'Apache2::RequestRec=SCALAR(0x7f18198c8c40)') called at (eval 1103) line 8
HTML::Mason::ApacheHandler::handler('HTML::Mason::ApacheHandler', 'Apache2::RequestRec=SCALAR(0x7f18198c8c40)') called at -e line 0
eval {...} at -e line 0