[otrs] Customer New Ticket View

Hello guys, i've removed the fields SLA, Queue from the Customer New ticket view, but now I'm not able to create new tickets, I click in create, and it returns to the view, as if any field that was required was not filled up, but there are no red fields, I'm guessing, the Queue field, even removed, are still required, so the ticket is not created. Is there a way to change it? Maybe I've done something wrong while removing this fields Ps: removed the fields trough Sysconfig Thanks