EXPDP - ORA-31626 , ORA-31638 , ORA-06512 , ORA-39077 , ORA-06502 while doing expdp

Hi All,

I am getting the below errors while performing expdp of schema  in our database. Our database version is  Standard Edition  12.1.0.2.0 - 64bit

Connected to: Oracle Database 12c Standard Edition Release 12.1.0.2.0 - 64bit Production

ORA-31626: job does not exist

ORA-31638: cannot attach to job SYS_EXPORT_SCHEMA_01 for user OPS$ORACLE

ORA-06512: at "SYS.DBMS_SYS_ERROR", line 95

ORA-06512: at "SYS.KUPV$FT_INT", line 429

ORA-39077: unable to subscribe agent KUPC$A_1_210133664010000 to queue "KUPC$C_1_20181209210133"

ORA-06512: at "SYS.DBMS_SYS_ERROR", line 95

ORA-06512: at "SYS.KUPC$QUE_INT", line 254

ORA-06502: PL/SQL: numeric or value error: character string buffer too small,