Well there are two ways. Version 63 is 1.5 year old and updating to the newest one via auto patcher would take very long (around 3 hours). If you still want to update via patcher, just hit "Verify" button and it should work.
But downloading the game directly from our website should be around 2x faster and more reliable for same connection speed, so I suggest you choosing this option. Since I assume that you downloaded it via some old torrent.
