Take a look at my "inavx" thread below, landonshaw. I had basically the same problem.
Hopefully you have backed up your waypoints and routes. Also check your chart account, I have x-traverse and had over 300 days.
1. Delete the app
2. Re-download the app. You will see this in your settings on the iPad
I believe under updates? Otherwise go to the Internet
and ask how to reload apps on an iPad. That is what I did.
3. Restore your waypoints and routes from the x-traverse account.
4. Follow the directions on how to reload the charts
from the inavx
thread below. I received that directly from them.
My experience is that I have the charts
and all of my data without any additional purchase
Sent from my iPad using Cruisers Sailing Forum