Facebook – Post to Group Error

Hello,

I’m trying to post to a Facebook group and I’m getting the following error:

Array
(
    [Warning] =>
    [Error] => (#200) Posts where the actor is a page cannot also include a target_id
         other than EVENT or GROUP
)

Array ( [Warning] => [Error] => (#200) Posts where the actor is a page cannot also include a target_id other than EVENT or GROUP ) 

The script works fine when posting to my pages.
Do you know what's the problem with group posting?

Thanks!

https://www.ads-software.com/plugins/social-networks-auto-poster-facebook-twitter-g/