Error = -60 may be caused by system instability or a temporary traffic overload. This can cause a failure to download error.
As this may be due to temporary network instability, please wait a few minutes and then try again. If the issue continues, the client may have been blocked by your antivirus or firewall and you should adjust your antivirus and firewall settings to make sure they are allowing the game to run.
If this error continues, please download the latest client and do a fresh install.