Is the error still same. Was these present in download or ../EPS/in/ ?
It might be that internal tables are filled with attributes. One suggestion would be to,
1. Reset the SUM tool.
2. Make sure that download directory have only packages mentioned in stack.xml file. No additional installation/upgrade packages. Additional Kernel related SAR files are okay to have.
3. Empty the ../EPS/in/ Directory. You can move the files to some other location instead of deleting incase you need them for later use.
4. Start the upgrade again from scratch.
Best Regards,
Gaurav