This can happen if your date and time settings are not configured correctly on your system. Or log in, if you have a VK account. ShowFastBox('Warning',' Unable to complete encrypted authorization. This can happen if your date and time settings are not configured correctly on your system. VK is the largest European social network with more than 100 million active users. Ve studied, worked or met on vacation. Learn more about people around you and make new friends. Stay in touch with loved ones. ShowFastBox('Warning',' Unable to complete encrypted authorization. This can happen if your date and time settings are not configured correctly on your system. VK is the largest European social network with more than 100 million active users. Ve studied, worked or met on vacation. Learn more about people around you and make new friends.