Mesenger, Cant conect my Facebook Profile to Site

[WujaDomin]

Hi i have proble with conection my Private facebook to Mesengeer sale chanel.

When i click on this green button Conect. its open facebook login site, when i log in to fb, button change color but its not conecting 

[soleseriouss]

The attached image is in another language. if you post it in the English language, it would be great, people will respond to your query.