Can't update to Plesk 9.0

[105547111]

Despite updating my key the installer just keeps bombing out:

Exchanging information with licensing server.base
Downloading the file PSA_9.0.0/plesk_getkeyinfo.sh: Failed to check whether a new license key is available.
ERROR: Failed to check whether a new license key is available.
Not all packages were installed.
Please, contact product technical support.


---
Parallels Products Installer.