delete comment && add comment on facebook

[sacchett...@gmail.com]

Hy all,

i'm new of this gem, i have some error

I need to resolve to put an online web applications on behalf of a client.

Error 1: Add comment

code:

post = FbGraph::Post.new(params[:comment][:id_ref_facebook])

bool = post.comment!(

        :access_token => access_token,

        :message => params[:comment][:content]

    )

the comment is posting on facebook
receive this message:
FbGraph::Unauthorized (OAuthException :: An unexpected error has occurred. Please retry your request later.):
and the script is blocked and not receive the id of comment why??

Error 2: Del comment
code:
comment = FbGraph::Comment.new(params[:comment][:ref_id], :access_token => access_token ).destroy
the error:
FbGraph::InvalidRequest (OAuthException :: (#1705) Selected wall post for deletion does not exist.):
the comment_id is correct.

why?

[sacchett...@gmail.com]

Thanks for All.