So I went into to my account using Chrome to change my email address to a more secure one, And upon successfully changing it, I can no longer visit my account page and get the above message. Oddly, I can access my games, friends, wishlists and chat.

I am however able to access it through Galaxy.

Something to note: Prior to changing my email, I had some funky interactions with the login interface. Initially it stuck processing my login indefinitely. Then I had trouble logging out.

Apologies if this is not in the right place, but I was directed to a forum where I could not find any appropriate outlets to discuss this. General discussion was full of posts unrelated to GoG, so it didn't make sense to post there.

I have tried logging out and clearing cookies, but the same thing happens.

Thank you. I will try this if the problem persists.

What was the solution? I'm having the same problem.