I have some users who can login to otrs. They are then greeted by software error in article.pm line 1117. However they can create tickets, and update their preferences. They just can't view their own ticket history. For that matter neither can an admin. However that is not the same for all users, most can login and view their history just fine. Sense other users can log in I believe the problem is in the Database. What table is responsible for linking the customer id to the ticket id.