Symptoms
Unable to restore Plesk backup from remote FTP server:
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
Cause
Backup file was created on the other Plesk server. For more information, visit Plesk Official Documentation for Uploading Backup Files to Server .
Resolution
- Log in to Plesk as admin
- Go to Tools & Settings > Backup Manager and click the backup that is needed to restore.
- Select “Restore this backup despite the fact that it does not have a valid signature” as on the following image:
Note: for resellers and clients, this option can be enabled in panel.ini
