I got this error when i try to upload a post through this api:← https://graph.facebook.com/v20.0/{page_id}/feed

{
  "error": {
    "message": "(#200) If posting to a group, requires app being installed in the group, and 
          either publish_to_groups permission with user token, or both pages_read_engagement 
          and pages_manage_posts permission with page token; If posting to a page, 
          requires both pages_read_engagement and pages_manage_posts as an admin with 
          sufficient administrative permission",
    "type": "OAuthException",
    "code": 200,
    "fbtrace_id": "AtZsGDSu1MmT32rxmLTZONz"
  }
}

Just give me a hand to solve this…