My Orbeon sits behind NGINX's reverse proxy but when /fr is accessed, it returns an error "Temporary failure in name resolution". May I know how to identified the name is being referred? Thank you.
2022-08-04T15:56:40,916 ERROR XFormsServer - xforms-submit-error - form: Temporary failure in name resolution
2022-08-04T15:56:40,985 INFO ProcessorService - /fr/service/exist/form - Timing: 1341
2022-08-04T15:56:40,993 INFO ProcessorService - /fr/service/persistence/form - Timing: 1639
2022-08-04T15:56:41,019 ERROR XFormsServer - xforms-submit-error - xf:submission for submission id: read-local-metadata, error code received when submitting instance: 500
2022-08-04T15:56:41,277 ERROR XFormsServer -
+----------------------------------------------------------------------------------------------------------------------+
|An Error has Occurred |
|----------------------------------------------------------------------------------------------------------------------|
|[No error message provided.] |
|----------------------------------------------------------------------------------------------------------------------|
|Application Call Stack |
|----------------------------------------------------------------------------------------------------------------------|
|----------------------------------------------------------------------------------------------------------------------|
|Exception: org.orbeon.oxf.xforms.action.XFormsAPI$SubmitException |