Unable to restore backup from FTP server, following error is shown:
PLESK_ERROR: Error: Global server security settings prohibits restore from unsigned or modified backups. You can not restore from it, except your service provider explicitly allow it
Backup file was created on another Plesk server. For more information, visit Plesk Onyx Official Documentation for Uploading Backup Files to Server.
1. Log in to Plesk
2. Go to Tools & Settings > Backup Manager and click the backup that is needed to restore.
3. Select "Restore this backup despite the fact that it does not have a valid signature" as on the following image: