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Problem with Visibility Booster
Currently, we experience some problems with visibility booster,- we cannot activate it because of the error two factor authentication. There's no any other option to proceed
You should reset the 2FA setup. i.e. remove it then re add it.
However if you have never completed it s setup then phone support team.
Thank you for the answer, it was an internal bug of booking.com
How did the internal bug get fixed? I am experiencing the same problem now.