how can remove error

[pradeepjadi]

Message Request processing failed; nested exception is com.restfb.exception.FacebookOAuthException: Received Facebook error response of type OAuthException: (#200) Requires either publish_to_groups permission and app being installed in the group, or manage_pages and publish_pages as an admin with sufficient administrative permission (code 200, subcode null) 'null - null'

[nbartels]

you use a access token with the permissions from the error message?