Date of the form YYYYMMDD out of range for argument-1 of function %1. Function result set to zero.
20
Cause . . . . . : For function INTEGER-OF-DATE, argument-1 must be in the form YYYYMMDD where YYYY must be greater than 1600 but not greater than 9999, MM must be a positive integer less than 13, and DD must be a positive integer less than 32.
Recovery . . . : Make sure the date is within the specified range.