soap to ftp scenario in SAP CPI

Hi ,

I have made a SOAP to FTP scenario in CPI , but I am getting an error message :

org.apache.camel.component.file.GenericFileOperationFailedException: Error writing file [po_dest.csv]

I am able to reach to the ftp receiver server via connection check in Security.

Its a plain ftp with no encryption.

I am attaching a screenshot of the iflow :