ORA-03115: unsupported network datatype or representation

Hi,

My environment,

Apps : 11.5.10.2

DB    : 10.2.0.2

I amgetting these error when i am querying the applsys.wf_deferred.

SQL> show user

USER is "APPS"

SQL> select * from applsys.wf_deferred;

select * from applsys.wf_deferred

                      *

ERROR at line 1:

ORA-03115: unsupported network datatype or representation

Thanks in advance....