Hi folks,
Please, what does it means the error bellow ?

I would like that OTRS decrypt an email when a encrypted message is sent to OTRS for a new ticket.

##############
Message: Need Hash!

 Traceback (27148):
   Module: Kernel::System::Crypt::SMIME::Decrypt (v1.9) Line: 157
   Module: Kernel::Output::HTML::ArticleCheckSMIME::Check (v1.8) Line: 100
   Module: Kernel::Modules::AgentTicketZoom::MaskAgentZoom (v1.27) Line: 572
   Module: Kernel::Modules::AgentTicketZoom::Run (v1.27) Line: 168
   Module: Kernel::System::Web::InterfaceAgent::Run (v1.17) Line: 671
   Module: /var/www/otrs-2.1.3/bin/cgi-bin/index.pl (v1.81) Line: 47 
#############

Thanks

Leo.