-79801   An invalid character is found in DBDATE format string

To fix the problem, modify the DBDATE format string to only include the correct date part designations: year (Y), numeric year expansion value (2 or 4), month (M), and day (D). Optionally, you can include an era designation (E) and a default separator character (hyphen, dot, or slash), which is specified at the end of the DBDATE format string. Refer to the user documentation for further information about correct DBDATE format string character designations.