Error message when resetting password: Call to undefined method checkResetPassword

You get the following error when you try to reset your password:

    Call to undefined method
    Illuminate\Database\Query\Builder::checkResetPassword()

Additional questions:
How to deal with this project when I clone this project to my PC?
I mean, when adding or modifying `database.php` it will be added to .gitignore?
Do you create a local branch and then add a DB connection to that branche?
Sorry, this is my first pull-request ;-)