Error:

Can't call method "raw" on an undefined value at /usr/share/koha/lib/C4/Search.pm line 813. at /usr/share/koha/intranet/cgi-bin/circ/returns.pl line 34. CGI::Compile::ROOT::usr_share_koha_intranet_cgi_2dbin_circ_returns_2epl::__ANON__("Can't call method \"raw\" on an undefined value at /usr/share/k"...) called at /usr/share/koha/lib/C4/Search.pm line 813 C4::Search::_get_facet_from_result_set("location", ZOOM::ResultSet=HASH(0xb3236f8), undef) called at /usr/share/koha/lib/C4/Search.pm line 767 C4::Search::_get_facets_from_zebra(ZOOM::ResultSet=HASH(0xb3236f8)) called at /usr/share/koha/lib/C4/Search.pm line 655 C4::Search::GetFacets(ZOOM::ResultSet=HASH(0xb3236f8)) called at /usr/share/koha/lib/C4/Search.pm line 508 C4::Search::__ANON__(1, 592) called at /usr/share/koha/lib/C4/Search.pm line 2474 C4::Search::_ZOOM_event_loop(ARRAY(0x90fb920), ARRAY(0x90fb950), CODE(0xa86f2f0)) called at /usr/share/koha/lib/C4/Search.pm line 632 C4::Search::getRecords("(su:\"HISTORIA\" and su-geo:ARGENTINA and su-to:Pol\x{ed}tica and su"..., "su:\"HISTORIA\" and su-geo:ARGENTINA and su-to:Pol\x{ed}tica and su-"..., ARRAY(0x92ef7a0), ARRAY(0x93095f0), 20, 20, "su-geo", undef, HASH(0xaaadda0), ...) called at /usr/share/koha/lib/Koha/SearchEngine/Zebra/Search.pm line 65 Koha::SearchEngine::Zebra::Search::search_compat(Koha::SearchEngine::Zebra::Search=HASH(0xa553808), "(su:\"HISTORIA\" and su-geo:ARGENTINA and su-to:Pol\x{ed}tica and su"..., "su:\"HISTORIA\" and su-geo:ARGENTINA and su-to:Pol\x{ed}tica and su-"..., ARRAY(0x92ef7a0), ARRAY(0x93095f0), 20, 20, "su-geo", undef, ...) called at /usr/share/koha/opac/cgi-bin/opac/opac-search.pl line 615 eval {...} called at /usr/share/koha/opac/cgi-bin/opac/opac-search.pl line 614 eval {...} called at /usr/share/koha/opac/cgi-bin/opac/opac-search.pl line 2 CGI::Compile::ROOT::usr_share_koha_opac_cgi_2dbin_opac_opac_2dsearch_2epl::__ANON__(CGI::Compile=HASH(0x14f0960), undef, "/usr/share/koha/opac/cgi-bin/opac/opac-search.pl", "/usr/share/koha/opac/cgi-bin/opac", ARRAY(0x90a70c8)) called at /usr/share/perl5/CGI/Compile.pm line 139 CGI::Compile::__ANON__() called at /usr/share/perl5/CGI/Emulate/PSGI.pm line 29 CGI::Emulate::PSGI::__ANON__(HASH(0xa553910)) called at /usr/share/perl5/Plack/App/WrapCGI.pm line 87 Plack::App::WrapCGI::call(Plack::App::WrapCGI=HASH(0x8cdb8d0), HASH(0xa553910)) called at /usr/share/perl5/Plack/Component.pm line 50 Plack::Component::__ANON__(HASH(0xa553910)) called at /usr/share/perl5/Plack/App/CGIBin.pm line 50 Plack::App::CGIBin::serve_path(Plack::App::CGIBin=HASH(0x1304e20), HASH(0xa553910), "/usr/share/koha/opac/cgi-bin/opac/opac-search.pl") called at /usr/share/perl5/Plack/App/File.pm line 34 Plack::App::File::call(Plack::App::CGIBin=HASH(0x1304e20), HASH(0xa553910)) called at /usr/share/perl5/Plack/Component.pm line 50 Plack::Component::__ANON__(HASH(0xa553910)) called at /usr/share/perl5/Plack/App/URLMap.pm line 71 Plack::App::URLMap::call(Plack::App::URLMap=HASH(0x7da2bc8), HASH(0xa553910)) called at /usr/share/perl5/Plack/Component.pm line 50 Plack::Component::__ANON__(HASH(0xa553910)) called at /usr/share/koha/lib/Koha/Middleware/SetEnv.pm line 103 Koha::Middleware::SetEnv::call(Koha::Middleware::SetEnv=HASH(0x8fdb650), HASH(0x8f9e118)) called at /usr/share/perl5/Plack/Component.pm line 50 Plack::Component::__ANON__(HASH(0x8f9e118)) called at /usr/share/perl5/Plack/Middleware/Static.pm line 18 Plack::Middleware::Static::call(Plack::Middleware::Static=HASH(0x8fdc100), HASH(0x8f9e118)) called at /usr/share/perl5/Plack/Component.pm line 50 Plack::Component::__ANON__(HASH(0x8f9e118)) called at /usr/share/perl5/Plack/Middleware/ReverseProxy.pm line 68 Plack::Middleware::ReverseProxy::call(Plack::Middleware::ReverseProxy=HASH(0x8cdb0c0), HASH(0x8f9e118)) called at /usr/share/perl5/Plack/Component.pm line 50 Plack::Component::__ANON__(HASH(0x8f9e118)) called at /usr/share/perl5/Plack/Middleware/AccessLog.pm line 24 Plack::Middleware::AccessLog::call(Plack::Middleware::AccessLog=HASH(0x13033d0), HASH(0x8f9e118)) called at /usr/share/perl5/Plack/Component.pm line 50 Plack::Component::__ANON__(HASH(0x8f9e118)) called at /usr/share/perl5/Plack/Util.pm line 142 eval {...} called at /usr/share/perl5/Plack/Util.pm line 142 Plack::Util::run_app(CODE(0xc1b538), HASH(0x8f9e118)) called at /usr/share/perl5/Starman/Server.pm line 281 Starman::Server::process_request(Starman::Server=HASH(0xee1e10), Net::Server::Proto::UNIX=GLOB(0x8f9e238)) called at /usr/share/perl5/Net/Server.pm line 74 Net::Server::run_client_connection(Starman::Server=HASH(0xee1e10)) called at /usr/share/perl5/Net/Server/PreFork.pm line 229 eval {...} called at /usr/share/perl5/Net/Server/PreFork.pm line 229 Net::Server::PreFork::run_child(Starman::Server=HASH(0xee1e10)) called at /usr/share/perl5/Net/Server/PreFork.pm line 187 Net::Server::PreFork::run_n_children(Starman::Server=HASH(0xee1e10), 1) called at /usr/share/perl5/Net/Server/PreFork.pm line 375 Net::Server::PreFork::coordinate_children(Starman::Server=HASH(0xee1e10)) called at /usr/share/perl5/Net/Server/PreFork.pm line 331 Net::Server::PreFork::run_parent(Starman::Server=HASH(0xee1e10)) called at /usr/share/perl5/Starman/Server.pm line 159 Starman::Server::run_parent(Starman::Server=HASH(0xee1e10)) called at /usr/share/perl5/Net/Server/PreFork.pm line 113 Net::Server::PreFork::loop(Starman::Server=HASH(0xee1e10)) called at /usr/share/perl5/Net/Server.pm line 60 Net::Server::run(Starman::Server=HASH(0xee1e10), "port", ARRAY(0x12348e8), "host", "*", "proto", "tcp", "serialize", "none", ...) called at /usr/share/perl5/Starman/Server.pm line 89 Starman::Server::run(Starman::Server=HASH(0xee1e10), CODE(0xee1cd8), HASH(0xe3ff78)) called at /usr/share/perl5/Plack/Handler/Starman.pm line 18 Plack::Handler::Starman::run(Plack::Handler::Starman=HASH(0xee1cf0), CODE(0xee1cd8)) called at /usr/share/perl5/Plack/Loader/Delayed.pm line 20 Plack::Loader::Delayed::run(Plack::Loader::Delayed=HASH(0xc9ecd0), Plack::Handler::Starman=HASH(0xee1cf0)) called at /usr/share/perl5/Plack/Runner.pm line 277 Plack::Runner::run(Plack::Runner=HASH(0xca5e88)) called at /usr/bin/starman line 38