Unable to import backup to frappe CLoud

Hi There,
i am trying to migrate from self hosted version to frappe cloud,
i’ve created a bench with 14 stable matching the self hosted version,
but upon hitting the create site button i receive this message

Error: Document has been modified after you have opened it (2023-11-29 21:12:58.508409, 2023-11-29 21:13:01.652640). Please refresh to get the latest document.

please advise