Upgrade database 10 to 11 g : catupgrd.sql failed

Hello,

  I run  catupgrd.sql script to upgrade  database from 10 g to 11. But the script failed  (in middle ) with errors

             ERROR at line 1:
             ORA-03113: end-of-file on communication channel

ERROR:

ORA-03114: not connected to ORACLE

              SP2-1519: Unable to write to the error log table sys.registry$error

Process ID: 17697

Session ID: 275 Serial number: 7

  How can fix this error? car i re-execute  catupgrd.sql ?

Thank's for your help

Best Regards,

Dj

 
 logs upgrade :

 SQL> -------------------------------------------------------------------------
SQL> ---     Finally, miscellaneous stuff like queue tables & stylesheets.
SQL> -------------------------------------------------------------------------
SQL>
SQL> --
SQL> -- Create a global temporary table for when the export version is not the same