I want to write My Feed but error #200 "(#200) If posting to a group, requires app being installed in the group
1

Error code : "(#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"

My Javascript source:

Facebook post write
신원준
Asked about a month ago