my facebook coonect not works with turkish character how can i do correct it as latin extended
It's not possible due to the symbols in the turkish alphabet. the username is used as URL for example of My profile page, it can cause errors, which is why you need to use only latin characters.
the username on facebook is made of first name and last name, if any of this contain some symbole in the character, you won't be able to login, only latin characters.