Hi Andrei,
Did you try to use the full BIMcloud Backup, available for BIMcloud only?
If yes - this works only when both BIMcloud Manager and Server has the backup, and you restore them to a new setup, while the original one is not disabled or uninstalled. If you see only the projects, it probably means that you restored only the Manager side data and not the Server side too.
Can you please also attach a screenshot about the error message you get?
Hopefully we can fix it for you here.
Kind regards,
Noémi Balogh
Community Expert, Admin