Error fetching submission uri

ODK community I can export data to ODK using briefcase and the server show an error on specific questionnaires here are is the error message. Please help

fetching instance 152 ...
SUBMISSION NOT RETRIEVED: Error fetching submission uri: uuid:f893e391-c323-4fcc-ba13-f0caf9cae085 details: Fetch of a submission failed. Detailed error: Internal Server Error (500) while accessing:[%40version%3D9+and+%40uiVersion%3Dnull]%2FTAN_PH_WASH_EN_SW_V09_TZ[%40key%3Duuid%3Af893e391-c323-4fcc-ba13-f0caf9cae085]
Please verify that the URL, your user credentials and your permissions are all correct.


You are likely running an older version of ODK Aggregate and somehow data has been inserted twice. This often happens on App Engine installs and the easiest way to fix it is to follow the suggestions at