HI everybody, last week I experienced a strange behavoiur of OTRS. One of our agents had problems creating new Phone Tickets: he received an error and the follwing entries were logged Sep 19 21:01:06 otrs OTRS-CGI-10[7579]: [Notice][Kernel::System::Ticket::TicketCreate] New Ticket [2007091910000061/Carlo Frilli] created (TicketID=845,Queue=MeLi,Priority=3 medium,State=closed successful) Sep 19 21:01:06 otrs OTRS-CGI-10[7579]: [Error][Kernel::System::Ticket::Article::ArticleCreate][Line:84]: Need SenderTypeID! Sep 19 21:01:29 otrs OTRS-CGI-10[7545]: [Error][Kernel::System::Ticket::Article::ArticleLastCustomerArticle][Line:974]: No article found for TicketID 845! Sep 19 21:01:34 otrs OTRS-CGI-10[7545]: [Error][Kernel::System::Ticket::Article::ArticleLastCustomerArticle][Line:974]: No article found for TicketID 845! So he had to recreate the tickets. When I came back to work, I found a bunch of error logs like those posted before. I made a research for tickets created in the last day, and I found good tickets and corrupt tickets: I mean that corrupt tickets were displayed without ticket number and with an error (I'm sorry I didn't take a snapshot). The error log showed the following entry, repeated for each corrupt ticket: Sep 19 21:05:12 otrs OTRS-CGI-10[7579]: [Error][Kernel::System::Ticket::Article::ArticleLastCustomerArticle][Line:974]: No article found for TicketID 848! However I restarted the server and created some test tickets, that were correctly created. But the error "No article found for ticket ID xxx" was still occuring . So I inspected the database, and found that some tickets where created without article. Then I manually purged the db deleting the orphaned entries from the tables ticket and ticket_history. Now it all came back to normality, and the system works fine. It just happened that otrs could not create artciles, but I don't know why. Any idea about it? Gab