Thank you. Syncing is starting. I hope all my data is on the old backup from 2017. My newer full backup from 2020 always had a syntax error (I have more backups with this error). If I have a problem with the old backup, is it possible to restore or repack one of the full backups with a syntax error?
No idea where the syntax error comes from, maybe the backup is corrupt. You can install an older version of the wallet from
https://github.com/byteball/obyte-gui-wallet/releases released at about the same time when the backup was made, and try to restore into that version. Before installing an old version, make sure you uninstall the current one and rename the data folder to get it out of the way.