I purchased ad-free Bittorrent for a year, cancelled my subscription so I can decide if I want to renew it next year, received the activation code, but when I use 'Activate Pro/Ad-Free' in BitTorrent, it gives me the error "Failed to reach the activation server. Please check your internet connection and try again." My internet connection is fine and I have turned off VPN. I'm running Windows 10 Home 64-bit