DataPump error while export

[gopu_g]

Hi All,

while exporting using datapump i am facing the below error.
can somebody suggest


ORA-39127: unexpected error from call to export_string :=SYS.LT_EXPORT_PKG.schema_info_exp('SYS',1,1,'10.02.00.00.00',newbloc
k)
ORA-04031: unable to allocate 46640 bytes of shared memory ("shared pool","LTADM","PL/SQL MPCODE","BAMIMA: Bam Buffer")
ORA-06508: PL/SQL: could not find program unit being called: "SYS.LTADM"
ORA-06512: at "SYS.LT_EXPORT_PKG", line 843
ORA-06512: at line 1
ORA-06512: at "SYS.DBMS_METADATA", line 5419

[PAVB]

Does ever expdp worked on affected instance?
Is SYS.LT_EXPORT_PKG package body valid?

[gopu_g]

yes it is valid

OWNER OBJECT_NAME OBJECT_TYPE STATUS CREATED TO_CHAR(LAST_DDL_T
--------------- -------------------------------- --------------- ------- --------- ------------------
SYS LT_EXPORT_PKG PACKAGE VALID 25-OCT-07 25-10-200713:44:49
SYS LT_EXPORT_PKG PACKAGE BODY VALID 25-OCT-07 25-10-200713:44:41

[giteshtrivedi]

Expand your shared pool.