public void restoreRegion(final Arena arena) {
        final Clipboard clipboard = savedClipboards.removeWeak(arena.getName());
        final Region region = arena.getSettings().getRegion();
        final org.bukkit.World world = region.getWorld();

        for (final Player player : world.getPlayers())
            player.kickPlayer("The game has ended you should not be here.");

        processedWorlds.add(world);

        if (clipboard == null)
            return;

        try (EditSession editSession = WorldEdit.getInstance().newEditSession(new BukkitWorld(region.getWorld())/*EditSession editSession = createSession(new BukkitWorld(region.getWorld()))*/)) {
            final List<BlockVector3> vectors = Common.convert(region.getBlocks(), ArenaMapManager::toVector);

            new ChunkedTask(100_000) {

                /**
                 * For each block in region find block stored in the clipboard,
                 * if it exists, restore it back
                 */
                @Override
                protected void onProcess(final int index) {
                    final BlockVector3 vector = vectors.get(index);
                    final BaseBlock copy = clipboard.getFullBlock(vector);

                    if (copy != null)
                        try {
                            editSession.setBlock(vector, copy);

                        } catch (final MaxChangedBlocksException e) {
                            e.printStackTrace();
                        }
                }

                /**
                 * Flush the operation to make the blocks visible on finish
                 */
                @Override
                protected void onFinish() {
                    editSession.flushSession();
                    processedWorlds.remove(world);
                    Common.log("Finished restoring the arena (" + arena.getName() + ")");
                }

                /**
                 * Return if we can pull more blocks from our region or we are finished
                 */
                @Override
                protected boolean canContinue(final int index) {
                    return index < vectors.size();
                }

                /**
                 * Also show percentage how many blocks we have restored to finish
                 */
                @Override
                protected String getProcessMessage(final long initialTime, final int processed) {
                    final long progress = Math.round(((double) getCurrentIndex() / (double) vectors.size()) * 100);

                    return "[" + progress + "%] " + super.getProcessMessage(initialTime, processed);
                }

            }.startChain();
        }

    }