Upload File gagal nyimpen ke direktori file (OOP PHP)

//koding function

function update_proposal_by_id($id, $nama_pemohon, $alamat, $npwp, $nama_bank, $kantor_cabang, $nama_rekening, $nomor_rekening, $jenis_peruntukan, $nama_lembaga, $no_legalitas, $no_telp, $tipe_pengusul, $ktp_bendahara, $ktp_sekretaris, $diajukan){
$direktori = "files";
foreach ($_FILES["fileku"]["error"] as $key => $error) {
    if ($error == UPLOAD_ERR_OK) {
        $tmp_name = $_FILES["fileku"]["tmp_name"];
        $name = $_FILES["fileku"]["name"][$key];
        $size = $_FILES["fileku"]["size"][$key];
        $type = $_FILES["fileku"]["type"][$key];
        $imageFileType = pathinfo($name,PATHINFO_EXTENSION);
        $nama_pemohon       = $_POST['nama_pemohon'];
        $alamat             = $_POST['alamat'];
        $npwp               = $_POST['npwp'];
        $nama_bank          = $_POST['nama_bank'];
        $kantor_cabang      = $_POST['kantor_cabang'];
        $nama_rekening      = $_POST['nama_rekening'];
        $nomor_rekening     = $_POST['nomor_rekening'];
        $jenis_peruntukan   = $_POST['jenis_peruntukan'];
        $nama_lembaga       = $_POST['nama_lembaga'];
        $no_legalitas       = $_POST['no_legalitas'];
        $no_telp            = $_POST['no_telp'];
        $tipe_pengusul      = $_POST['tipe_pengusul'];
        $ktp_bendahara      = $_POST['ktp_bendahara'];
        $ktp_sekretaris     = $_POST['ktp_sekretaris'];
        $diajukan           = $_POST['diajukan'];
        $tgl                = date('Y-m-d');
        $filenama[] = $name;
        }
}
if ($size > 1024 * 2000) {
  echo "file lebih dari 1mb";
} elseif ($type != 'image/jpg' and $type != 'image/jpeg' and $type != 'image/JPG' and $type != 'image/JPEG' and $type != 'application/pdf' and $type != 'application/PDF') {
  echo "file tidak cocok";
}else{
/*
  for($i = 0; $i < $name; $i++){
        move_uploaded_file($tmp_name, $direktori."/".$name);
    }
*/
move_uploaded_file($tmp_name, $direktori."/".$name);

// Masukkan informasi file ke database
$query = "UPDATE t_proposal SET nama_pemohon = '$nama_pemohon', alamat = '$alamat', npwp = '$npwp',
nama_bank = '$nama_bank', kantor_cabang = '$kantor_cabang', nama_rekening = '$nama_rekening',
nomor_rekening = '$nomor_rekening', jenis_peruntukan = '$jenis_peruntukan', nama_lembaga = '$nama_lembaga',
no_legalitas = '$no_legalitas', no_telp = '$no_telp', tipe_pengusul = '$tipe_pengusul',
ktp_bendahara = '$ktp_bendahara', ktp_sekretaris = '$ktp_sekretaris', diajukan = '$diajukan',
pas_photo = '".$filenama[0]."', lampiran_npwp = '".$filenama[1]."', lampiran_rekening = '".$filenama[2]."',
logo_lembaga = '".$filenama[3]."', lampiran_legalitas = '".$filenama[4]."', lampiran_bendahara = '".$filenama[5]."',
lampiran_sekretaris = '".$filenama[6]."' WHERE id='$id'";
return run($query);
}
}

//koding view

  if (isset($_POST['submit'])) {
    $nama_pemohon       = $_POST['nama_pemohon'];
    $alamat             = $_POST['alamat'];
    $npwp               = $_POST['npwp'];
    $nama_bank          = $_POST['nama_bank'];
    $kantor_cabang      = $_POST['kantor_cabang'];
    $nama_rekening      = $_POST['nama_rekening'];
    $nomor_rekening     = $_POST['nomor_rekening'];
    $jenis_peruntukan   = $_POST['jenis_peruntukan'];
    $nama_lembaga       = $_POST['nama_lembaga'];
    $no_legalitas       = $_POST['no_legalitas'];
    $no_telp            = $_POST['no_telp'];
    $tipe_pengusul      = $_POST['tipe_pengusul'];
    $ktp_bendahara      = $_POST['ktp_bendahara'];
    $ktp_sekretaris     = $_POST['ktp_sekretaris'];
    $diajukan           = $_POST['diajukan'];

    if (!empty(trim($nama_pemohon)) && !empty(trim($alamat)) && !empty(trim($npwp)) && !empty(trim($nama_bank))
        && !empty(trim($kantor_cabang)) && !empty(trim($nama_rekening)) && !empty(trim($nomor_rekening))
        && !empty(trim($jenis_peruntukan)) && !empty(trim($nama_lembaga)) && !empty(trim($no_legalitas))
        && !empty(trim($no_telp)) && !empty(trim($tipe_pengusul)) && !empty(trim($ktp_bendahara))
        && !empty(trim($ktp_sekretaris)) && !empty(trim($diajukan))) {
        if (update_proposal_by_id($id, $nama_pemohon, $alamat, $npwp, $nama_bank, $kantor_cabang, $nama_rekening,
            $nomor_rekening, $jenis_peruntukan, $nama_lembaga, $no_legalitas, $no_telp, $tipe_pengusul, $ktp_bendahara,
            $ktp_sekretaris, $diajukan)) {

          $error = '<div class="alert alert-success alert-dismissible fade in" role="alert">
                      <button type="button" class="close" data-dismiss="alert" aria-label="Close">
                        <span aria-hidden="true">×</span>
                      </button>
                      Proposal Berhasil Diupload...
                    </div>';
                    header('Location: monitoring.php');
          }else {
          $error = '<div class="alert alert-danger alert-dismissible fade in" role="alert">
                      <button type="button" class="close" data-dismiss="alert" aria-label="Close">
                        <span aria-hidden="true">×</span>
                      </button>
                      Ada Kesalahan Saat Input Data...
                    </div>';
          }
    }else {
      $error = '<div class="alert alert-warning alert-dismissible fade in" role=q"alert">
                  <button type="button" class="close" data-dismiss="alert" aria-label="Close">
                    <span aria-hidden="true">×</span>
                  </button>
                  Semua Data Wajib Diisi.!!!
                </div>';
      }
    }

Upload berhasil kesimpen dengan sempurna ke database, tapi masalahnya gak kesimpen di folder "files" kalau mau coba, filenya ada di bawah.. databasenya ada di folder "database" <a href=' https://drive.google.com/drive/folders/0B8zKfUq99bQqbnhpa3hMME9XZzQ?usp=sharing '> https://drive.google.com/drive/folders/0B8zKfUq99bQqbnhpa3hMME9XZzQ?usp=sharing </a>

mohon pencerahan, terimakasih sebelumnya :)