I had parched Tom Clancy's Rainbow Six Siege around 2 years ago in a summer sale, the Deluxe version, and haven't played ever since but was on my Library, and download now. I have signed in to my account and all in Ubisoft connect, it showed I would get which packages but after I press continue it showed- " There was a problem authenticating the ownership of this product please contact customer support if you need help". How to solve this problem. the steam account is the same account as this account and this is the 1st time I have downloaded it on my pc.
how to solve this?