Laravel 5.4 - how to get and save database.sqlite located in the database folder

I have a backup and restore database menu in my application, here I use sqlite for my database, I want to implement import and export database system like in phpmyadmin, and I am thinking of how to access database.sqlite in the database folder

I have tried it this way

<a href="/database/database.sqlite" class="btn">Backup</a>

and got the error

is there any way to get database.sqlite or maybe an easier way to backup and restore sqlite database on laravel 5.4?

via Chebli Mohamed