This is either a case of a missing control card element, or program element - a control card is not present in the library specified in the JCL. This can occur when a control card/module is promoted from one test environment to another. The resolution for this is to search the other levels of promotion for the correct element and use this library as a temporary fix - the JCL should be changed to reflect the move at a later date.
The SORTIN, SORTOUT, or OUTFIL BLKSIZE parameter:
--> Was greater than 32760 for a disk data set, or
was greater than the maximum block size supported
by the access method for a tape data set.
-->Was not an integer multiple of the LRECL
parameter for fixed-length records, or was not at
least four bytes longer than the LRECL for
variable-length records.