Facebook chat is not working

Facebook chat is not working www.creative-boxx.com where can i add the code to make it work?/

Hello there,

Which code did your use? Would you please share it here? If possible, please refer me to the guide/tutorial where you got the code from.

Regards,
Kharis
aThemes Support

I used the plug-in Messanger Customer Chat.

It is written on the plug-in that: “The code has already been added into your website. You can always go back through the setup process or edit the code manually below.”

But it won’t display on the website. There is also a code:

Should I add somewhere this code to make it work? I would like it to work on all my pages.