brconnect -u / -f chpass -o BRT$ADM -p password1 -s brtools
I don't understand why you are running this.
If SSFS is set properly have you tried with a different set of R3load files ?
Read this article ORACLE 11 and Secure Storage in File System and see if SSFS is set properly.
First restart the system and start the export and see if that helps or else replace the R3* files.
Regards
RB