gistfile1.txt

ActionView::TemplateError: You have a nil object when you didn't expect it!
The error occurred while evaluating nil.name
    On line #13 of app/views/tickets/index.html.erb

        10:
        11:   <% for ticket in @tickets %>
        12:     <tr>
        13:       <td><%=h ticket.category.name %></td>
        14:       <td><%=h ticket.employee_name %></td>
        15:       <td><%=h ticket.email %></td>
        16:       <td><%=h ticket.order_number %></td>