6027-994 ACL permissions cannot be denied to the file owner.

Explanation
The mmputacl command found
that the READ_ACL, WRITE_ACL, READ_ATTR,
or WRITE_ATTR permissions are explicitly
being denied to the file owner.  This is not permitted, in order to
prevent the file being left with an ACL that cannot be modified.
User response
Do not select the READ_ACL, WRITE_ACL, READ_ATTR,
or WRITE_ATTR permissions on deny ACL
entries for the OWNER.