Notification (E-Message Blank)

Why is it when I leave a field blank in my form it generates a email with just labels and no data, but If I populate all the fields that are in the email form, it works fine. Example of my "Email Message" ========This is in the Body Html of my "Email Message"====================== <font size="+0" style="font-variant:small-caps">Program:</font> ${Item[@type="Program"]/name} <br/> <font size="+0" style="font-variant:small-caps">Customer:</font> ${Item[@type="Customer"]/name} <br/> ==========This is in the Query String of my "Email Message"============================== <Item type="Program" action="get" select = "name"> <id condition="in"> (SELECT program FROM innovator.Express_ECO WHERE (id = '${Item/@id}')) </id> </Item> <Item type="Customer" action="get" select = "name"> <id condition="in"> (SELECT customer FROM innovator.Express_ECO WHERE (id = '${Item/@id}')) </id> </Item>