Error while processing dimension!!

Hello Experts,

We are using BPC 7.5 M sp04, I am trying to add a "Parenth6" column to the "Org" dimension (Org dimension already has Parenth1 to Parenth5 columns), After adding the "Parenth6" column I tried processing the dimension and it is showing below error:

"-OLEDB error: OLE DB or ODBC error: Cannot create a row of size 9052 which is greater than the allow maximum row size of 8060.; 42000.Errors in the OLAP storage engine: An error occurred while the dimension, with the ID of 'CDNPLAN', Name of 'Org' was being processed.

Server: The current operation was cancelled because another operation in the transaction failed."

Please Advice.

Thanks & Regards,

Rohit