Hello @Denisnuri, welcome to our Community!
I looked right away and I see that your account is not linked anywhere. Are you logging in with the email address from your profile? I see that it is an ''empty'' account that your subscription is not yet linked to.
Do I understand correctly that logging in works, but linking does not? Can you try it for me via a browser/desktop version to see if you get the same message?
I see you've been in touch with a colleague today and a case has been forwarded to our IT team so they can resolve it for you (reference number: 74244487). The processing time is currently 13 days due to busy department. It could well be picked up within a few days, but please keep in mind that it may take up to 13 days before you can expect feedback from my colleagues.
Do you have this error message only in the app or also via a browser/laptop version? Can you try that and share one and a screenshot with me if you see the same error message? Then I can mention this in the case so they have a good idea of the situation.
I'd love to hear from you!