Upgrade the Database
Every time you make a change in the database schema
(create a new table or add a new field) you must upgrade the DB.
This article explains how to do that.
See the steps below.
1: Open the application.
2: Right click and select "Developer".
3: Double click "Database Manager".
4: Click "Actions" from the menu and select "Read schema".
5: After the schema's reading click "Actions" again from the menu and select "Upgrade".
6: After the schema's upgrade close the application.
These actions create the file data.db in the folder "RESOURCES".
For more help please see