It seems you are using Wamp server's mySQL..
- Left click wamp server icon
- hover MySQL
- left click my.ini

On the text editor,find this line:
lc-messages=fr_FR
And change to:
lc-messages=en_US
After saving the changes,you need to restart Mysql service.

By the way the error you get means:
access denied for user: homestead'@'@localhost'(password: yes)
Be sure you correctly configure laravel to use on wamp-server and your database settings are correct..
you may need to check both app/config/databese.php and .env file in your root directory..
https://laravel.com/docs/5.0/configuration#environment-configuration