Сбой обновления до версии 2.7.0.beta2

My upgrade to 2.7.0.Beta2 cannot be even started - click on the one-click upgrade link in the email announcing this upgrade

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Your version: 2.7.0.beta1
New version: 2.7.0.beta2

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why is this happening? I am supposed to run the upgrade from the console logged in the Digital Ocean droplet hoting discourse?