WARNING: Printed if the owner window for a dialog or frame could not be determined. The dialog or frame is then displayed parentless which means that is acts standalone showing the default icon. The dialog or frame will not block the main window here which may cause data loss or corruption e.g. if database entries are being edited.
Internal problem of the application. Update or upgrade to the latest software version first. The dialog or frame should be exited immediately without saving any data. Normally, this can be easily achieved by pressing the CANCEL button or the ESCAPE key.
Please contact the Leisenfels support if the problem still exists after performing the steps mentioned above.