I play Destiny 2 on my Xbox and want to switch over to Steam through the cross-save feature. However, every time I try to authorize my account, I receive the above error code. I entered the correct account credentials, I tried switching to a different browser, and I have tried the D2 mobile app. This seems to be an ongoing issue, per the internet, as I have searched online for a solution. I am willing to unlink my Steam account if that's at all possible, and play on Epic, as in order to play on either one, you need every linked account activated. I have my Xbox, Epic, and Steam profiles linked. If you want an image of the page where the error code appears, the forum post below (by another user with the same problem) includes one. https://www.bungie.net/en/Forums/Post/262225250