App wont save custom work.......

I was very excited by the ease to use the app. Started planning my week in Paris. Added custom locations. Spent several hours planning a week of sight-seeing walks in Paris and now the app wont backup and save. It keeps locking up. Appears nothing I can do but delete and reload the app! My fear is I will lose all my work! Frustrating!

IP Enthusiast about Paris Map & Walks (F), v6.8