So guys, some of my customers having trouble to create acc and login with facebook...
Here some of the logs errors.
[2019-02-01 10:57:08] production.ERROR: TypeError: Argument 1 passed to Flarum\Forum\Auth\Registration::provideTrustedEmail() must be of the type string, null given, called in /var/www/html/vendor/flarum/auth-facebook/src/FacebookAuthController.php on line 92 and defined in /var/www/html/vendor/flarum/core/src/Forum/Auth/Registration.php:71
[2019-02-01 11:30:16] production.ERROR: Flarum\Http\Exception\MethodNotAllowedException: OPTIONS in /var/www/html/vendor/flarum/core/src/Http/Middleware/DispatchRoute.php:62
[2019-02-01 12:14:13] production.ERROR: League\OAuth2\Client\Provider\Exception\IdentityProviderException: OAuthException: This authorization code has been used. in /var/www/html/vendor/league/oauth2-facebook/src/Provider/Facebook.php:156
any clues about that?
