Getting problem while creating new work area

Created one user for repository with separate table space. Given that user necessary grants. Created Repository via Designer 6i (repository admin utility). I am able to logon with the created user. I enabled the version control also. I try to create one work area via Design Editor and Repository Object Navigator. I am getting the following error.

Message
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ORA-01086: savepoint 'RM_DISPATCH' never established

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Message
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ORA-06512: at line 18

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Message
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ORA-25153: Temporary Tablespace is Empty

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Message
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RME-02124: Failed to execute SQL statement: ! declare
utility varchar2(3);
curr_el integer;
begin
savepoint rm_dispatch;
rmmes.clear;
curr_el := 0;
RMOACTIVITY.OPEN(:p1_el0,:p2_el0);
:errcnt := 0;
exception when others then
rmmes.get_error_state(utility,:excode);
rmmes.get_product(utility,:exprod);
:exutil := utility;
:errcnt := rmmes.getsize;
:sqlcod := SQLCODE;
:sqlmsg := SQLERRM;
:currel := curr_el;
rollback to savepoint rm_dispatch;
end;

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Message
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RME-00222: Failed to dispatch operation to Repository

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Message
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RME-00223: Failed to open new activity