Can you clarify and give more detail about what you want to achieve ?

Are you trying to use Sync to restore your personal data ?

If you change the password of the Sync account or request a new password because you do not remember the password then all data previously stored on the Sync server is removed and this data is gone and can't be recovered. This is because this password is used to encrypt the data locally before uploading to the Sync server, so only that original password can decrypt content that is on the Sync server.

So I have already lost my data because I logged in to this account is there any chance of recovery?