I haven’t used codeigniter for a long time, I wanted to use it today and I get an error. I want to display detailed data on the website, but it always gives an error

model home

 public function detail_wisata($id_wisata)
    {
        $this->db->select('*');
        $this->db->from('tb_wisata');
        $this->db->join('tb_kategoriwisata','tb_kategoriwisata.id_kategori = tb_wisata.id_kategori', 'left');
        $this->db->where('id_wisata', $id_wisata);
        return $this->db->get()->row();
    }

my controller

 public function detail_wisata($id_wisata)
    {
        $data = array (
            'title' => 'Sistem',
            'wisata' => $this->m_home->detail_wisata($id_wisata),
            'title2' => 'Detail Wisata',
            'isi' => 'v_detail_wisata'
        );
        $this->load->view('layout/v_wrapper',$data, FALSE);
    }

and this my page detail

div class="course_container">
<div class="course_title"><?=$wisata->nama_wisata?></div>