When I try to run php artisan serve and go to http://127.0.0.1:8000/, there was an error "IlluminateDatabaseQueryException could not find driver PRAGMA foreign_keys = ON;. I have searched and realize this is because I haven’t install sqlite. But right now I want to use Firebase Realtime Database. So is there any possible way to deal with this error without installing sqlite and changing to Firebase?
The error
The project structure is created by Laravel, which can be seen here

I have tried to delete the config/database.php file but then there is a different error: array_merge(): Argument #2 must be of type array, int given so I think I need to edit something else before deleting database.php file.
I have already configured the files to connect to Firebase Realtime Database, so no need further information about it for now.