Hi Wayne, Sorry about this it is a known issue with an earlier release 2.4.0 , we have resolved the issue in the most current version in the AppStore v2.4.1 . You will need to clear your old data first, do that by uninstalling the app and if you have an iCloud account remove the data from that too,
On your device go to Settings > iCloud > Storage > Manage Storage and select Zed Timesheet from the documents and data selection and Edit > Delete All.