Hi Dinesh,
You should tune the database memory parameters as per SAP note 1431798.
Below is the official statement about the oracle error:
ORA-30927: Unable to complete execution due to failure in temporary table transformation
Cause: In memory temporary tables we create are aged out of shared pool before we are able to grab them again.
Action: Reduce activities that use a lot of shared pool space or wait for a while, then retry.
Best regards,
James