Stopped working

I installed the app last week, as I am in the DC area on a family emergency. For the first several days, it worked great. It was a real help with learning the system; I relied on it for planning my connections on the Metro Rail. But it stopped working three days ago. It will NOT plan any trips at all. The only function that seems to work is the map, and I can Google that. Uninstalled.

candi4rls about iTrans DC Metro, v7.1