sortable not working with "where"

[gesitaric]

Im getting this error when trying to sort some of my columns

SQLSTATE[42S22]: Column not found: 1054 Unknown column 'sort' in 'where clause' (SQL: select count(*) as aggregate from books where (is_visible = 1 and sort = date and direction = asc))

Here is my controller:

public function index()
{
  return response()->view('books.index', ['books' => Book::where('is_visible', 1)->sortable()->paginate(5)]);
}

Any ideas??