A background job called RSPARAGENER8M will be executed in the system during the SGEN phase. Based on the logs I can see there were generation errors.
A4 ETSGEN 901 "615 objects show generation errors."
A4 ETSGEN 901 "3 objects show syntax errors."
If I were you I would modify the table GENSETM as suggested in the KBA and continue with the upgrade.
