Hi Guys, Performed an upgrade of OTRS from ver 4 to 5 using the manual method (source tarballs). No errors or warnings encountered at all during the upgrade steps. I can log into the system fine, however when I go to look at any queue: Backend ERROR: OTRS-CGI-10 Perl: 5.20.2 OS: linux Time: Tue Oct 27 10:31:12 2015 Message: Module Kernel/Output/HTML/TicketMenuLock.pm not in @INC (/usr/Custom /usr/Kernel/cpan-lib /usr /usr/sbin/../../Custom /usr/sbin/../../Kernel/cpan-lib /usr/sbin/../.. /opt/otrs/Custom /opt/otrs/Kernel/cpan-lib /opt/otrs/ /etc/perl /usr/local/lib/x86_64-linux-gnu/perl/5.20.2 /usr/local/share/perl/5.20.2 /usr/lib/x86_64-linux-gnu/perl5/5.20 /usr/share/perl5 /usr/lib/x86_64-linux- gnu/perl/5.20 /usr/share/perl/5.20 /usr/local/lib/site_perl . /etc/apache2) RemoteAddress: 59.167.252.230 RequestURI: /index.pl?Action=AgentTicketQueue;OTRSAgentInterface=5MIZsAktlkLiEYG5yEiRY2dL3f2t Bq38 Traceback (11715): Module: Kernel::Output::HTML::TicketOverview::Small::Run Line: 498 Module: Kernel::Output::HTML::Layout::Ticket::TicketListShow Line: 1121 Module: Kernel::Modules::AgentTicketQueue::Run Line: 462 Module: Kernel::System::Web::InterfaceAgent::Run Line: 1036 Module: ModPerl::ROOT::ModPerl::Registry::opt_otrs_bin_cgi_2dbin_index_2epl::handler Line: 40 Module: (eval) (v1.99) Line: 207 Module: ModPerl::RegistryCooker::run (v1.99) Line: 207 Module: ModPerl::RegistryCooker::default_handler (v1.99) Line: 173 Module: ModPerl::Registry::handler (v1.99) Line: 32 In version 4.x there was indeed a file at /opt/otrs/Kernel/Output/HTML/TicketMenuLock.pm In version 5, the contents of the Kernel/Output/HTML folder are very different. The only references I can find to *TicketMenuLock is in /opt/otrs/Config/Files/ZZZAuto.pm* *Grep reveals:* Config/Files/ZZZAuto.pm:131: 'Module' => 'Kernel::Output::HTML::TicketMenuLock', Config/Files/ZZZAuto.pm:209: 'Module' => 'Kernel::Output::HTML::TicketMenuLock', Whats the deal with this? Is it something that is no longer used? That I need to remove? What do I need to do to fix this? Cheers, Alex.