Hi Darshak, I found this error happens when an Agent with no queue in “My Queues” access the Dashboard. I solved it sending an email to all agents telling them to update “My Queues” personal preferences. Kind regards, Juan Clavero OTRS 3.1 on CentOSLinux [Apache and MySQL ] connected to an Active Directory for Agents and Customers. De: Darshak Modi [mailto:darshak.modi@elitecore.com] Enviado el: martes, 02 de abril de 2013 12:54 Para: OTRS User Mailing List Asunto: [otrs] getting following error constantly [Error][Kernel::System::Ticket::TicketSearch][Line:4192]: The given param 'QueueIDs' is invalid or an empty array reference! Though OTRS is fetching mails and puts in queues defined. -- Darshak Modi | Elitecore Technologies Telecom Practices- India Office: 079-26405600 | +91-9909008245 Skype: darshakamodi