Error while trying to execute program in OBPM Studio workspace

Hi All,
I installed OBPM and tried to execute a sample program using workspace. I could see the below error.
The Process '/SampleProcess#Default-1.0' is not available.
The Process '/SampleProcess#Default-1.0' is not available. Caused by: Process '/SampleProcess#Default-1.0' not available. Caused by: Engine 'SampleSepVar' cannot process requests.
The same is the case, when I tried to work on Expense managenenent(the sample application provided by Oracle).
Can some one help me?
Thanks in advance
Lal
Edited by: Laloo on Apr 18, 2010 8:10 AM

You're getting this probably because you have errors in your project. Click the "Problems" tab.
Dan

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UTL_HTTP.set_header(v_request, 'SessionID', v_session_id);
END IF;
RETURN v_request;
END http_request;
Here is my anonymous block, where I tested the function with the URI parameters
declare
v_request UTL_HTTP.req;
begin
UTL_HTTP.set_wallet('file:/etc/ORACLE/WALLETS/attask', '<pwdforattask>');
v_request := pkg_attask_api.http_request('https://streamsandbox.attask-ondemand.com/attask/api/login?username=<valid_user_name>&password=<valid_pwd>','GET',NULL);
end;
Please note that user name and passwords used for the above test have been tested to be correct. When I login to web interface of the URL, these values work fine.
Any help is appreciated as I am close to hitting the wall on this!
Thanks for your time and expertise,
Suma

28750, 00000, "unknown error"
// *Cause: An Oracle Security Server error of an unspecified type occurred.
// *Action: Enable tracing to determine the exact cause of this error.
// Contact Oracle customer support if needed.

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