Drop Down Menus not working for me. DT 7.0

I am working with the Directory Theme version 7.0
WordPress Version 4.0.1

I have a main menu with Sub items under the last menu item (Resources) and I am not getting a dropdown to display the subs.

I have verified that it works in other themes, such as the WP 2013 theme.

I am fairly new to Word Press and Premium press alike, but given that the default WP theme works correctly, I assume that this must be Theme related.

Please Advise ASAP.

https://us2.demo.somertech.com/

Regards;

Michael