Re: [Релиз] Live chat
This is your fault: <b>Warning</b>: require(./../../extensions/live_chat/lang/Francais/live_chat.php): failed to open stream.
No translation in French language.
As a workaround, go to extension language folder: /extensions/live_chat/lang/
copy the folder with the English translation, and rename it Francais.
It should look like this: /extensions/live_chat/lang/Francais