It don't work

Sample below is generated from plugin. Just replace XXXXX with your token. Place that link into browser. If the token is valid you will get data from facebook.

https://graph.facebook.com/463776883765579/events/attending/?fields=id,name,description,place,timezone,start_time,cover&access_token=XXXXXXXXXXXXXXXXXXX&since=1388534400&until=1468972800