We are getting 500 internal server error on calling EPM Cloud REST APIs using OIC

We are getting 500 internal server error on calling EPM Cloud REST APIs using OIC

We are using REST APIs available in below doc-

https://docs.oracle.com/en/cloud/saas/enterprise-performance-management-common/prest/execute_a_job.html#planning_rest_apis_3

Below is the error message:

An error occurred while invoking the REST endpoint.[[java.net.SocketTimeoutException: Read timed out]].The 500 Internal Server Error is a very general HTTP status code that means something has gone wrong on the server side, but the target service could not be more specific on what the exact problem is. You can trace the cURL representation of the request sent to the target service from the Oracle Integration Cloud server logs. Try invoking the target service using cURL. If the problem persists, contact the target service admin