As indicated by the syntax error (ICE007A), your SORT statement is incorrect. It should be:
However, you can't use COPY with SUM FIELDS=NONE and DFSORT doesn't support XSUM. You can do what you want using the DFSORT/ICETOOL technique described in the "Keep dropped duplicate records (XSUM)" Smart DFSORT Trick at:
However, in order to work with duplicates, you need to specify the field on which you will be checking for duplicates. That's why you can only use SUM FIELDS=NONE for a SORT or MERGE application, not a COPY application.