Data array empty from Facebook API

Hi, I’m using this plugin with the following social accounts: Instagram, Facebook and YouTube. All the services work properly except for Facebook. I don’t receive any data from the stream created even if the link status has green light and there are no errors on the log.
I have noticed analyzing the console that the array from the Facebook API answer is empty.

Has anyone the same problem?
Can you help me to solve it?

ps. I have already tried to delete the connection with Facebook and to create again the token but no changes. I have installed the latest version of the Plugin.

Thanks