Workaround:
1. Login on your database.
o Use the system user.
2. Execute the next command to validate the current value for the OPEN_CURSORS.
o SHOW PARAMETERS OPEN_CURSORS
3. If its value is less than 800 then write the following command.
o ALTER SYSTEM SET OPEN_CURSORS=500 SCOPE=SPFILE;
4. Restart your Database.
5. Start the RCU and try now.
