“The problem may be resolved if the Cambodian government modifies their status from trainees to full-time employees or full-time workers after a specific period of time, perhaps six months,”
You currently have access to a subset of Twitter API v2 endpoints and limited v1.1 endpoints (e.g. media post, oauth) only. If you need access to this endpoint, you may need a different access level. You can learn more here: https://developer.twitter.com/en/portal/product