Datapump ORA-31626 ORA-31638 ORA-31632 ORA-00942

Datapump expdp finished, but generated errors :

ORA-31626: job does not exist
ORA-06512: at "SYS.DBMS_SYS_ERROR", line 79
ORA-06512: at "SYS.KUPV$FT", line 405
ORA-31638: cannot attach to job SYS_EXPORT_SCHEMA_01 for user TETSUSER
ORA-31632: master table "TESTUSER.SYS_EXPORT_SCHEMA_01" not found, 
           invalid, or inaccessible
ORA-00942: table or view does not exist

SQL> SELECT owner_name, job_name, operation, job_mode,
            state, attached_sessions
FROM dba_datapump_jobs;

OWNER_NAME JOB_NAME             OPERATION  JOB_MODE STATE      ATTACHED_SESSIONS
---------- -------------------- ---------- -------- ---------- -----
TESTUSER      SYS_EXPORT_SCHEMA_01  EXPORT    SCHEMA   COMPLETING 0