Hi Jaswanth,
The same error was thrown in our job in a data flow which used to work fine. Could you please check if the target structure(Master or Transaction Transfer Structre) of any SAP BW objects has been changed. Replace the target structure by reimporting it in the BODS Job and try running the job again
Usually there are automated target SAP BW structures created which actually cause this issue.
Regards
Arun Sasi