Encrypted sync: lost key and can't use a new one

Hello there, I would need some help with the encrypted sync. I formatted my laptop and I forgot to save the key generate during the set up process. Now I exported all of my notes in json from my mobile, I imported them in the everdo mac app and now I would like to set up a new sync between the two. The problem is that when I start the sync setup it tells me to enter my email to verify my account, after doing so I click “generate new key” but the button “Finalize setup” is greyed and can’t be clicked:

How can I fix this?

Okay, I fixed this by repeating the manual sync setup instead of the automatic one!