Error 30: Backup activation failed.

Hello @ITAdminWAI 

Thanks for your post.

Was TeamViewer Backup previously installed on this device?

If so, it could be the last uninstall was not able to complete. Please unassign and re-assign the device to your account in the TeamViewer General settings (Extras | Options | General | Account Assignment). Once done, attempt the same installation again.

Should the issue persist, I would recommend reaching out to our support team directly for further troubleshooting.