Once get upgrade to new version it start to fails with following error.
INFO: oracle.sysman.top.oms:exiting the thread...
INFO: oracle.sysman.top.oms:[Initializing the EM RCU Runner, Running the Schema Action, Schema Action Completed Successfully]
INFO: oracle.sysman.top.oms: action logger path calculated finally: /u01/app/oracle/middleware1/oms/sysman/log/schemamanager/m_010513_0205_AM/m_010513_0205_AM.TRANSX/
INFO: oracle.sysman.top.oms:The transx command execution is completed with the status 0
INFO: oracle.sysman.top.oms:1 error(s) happened in performing the action:
ORA-06502: PL/SQL: numeric or value error: character to number conversion error
ORA-06512: at "SYSMAN.EM_CRYPTO", line 62
ORA-06512: at "SYSMAN.EM_CRYPTO", line 229
ORA-06512: at line 1
ORA-06512: at line 14
Refer to the Upgarde checklist : MOS 1494890.1
We have also released a patch with EM installer auto update to tackle all the Install/Upgarde know issues. Did you use the auto update feature to apply that patch ?
Also open an SR with oracle support and they can assit you further.