AutoInstallerManager::CheckUpdates() failed: AutoInstallerManager::_autoInstallerCall

[davide.damico]

Today I receive this error while logging into plesk 8.0.1 on FreeBSD 6:
AutoInstallerManager::CheckUpdates() failed: AutoInstallerManager::_autoInstallerCall() failed: autoinstaller failed: Segmentation fault (core dumped)

0: /usr/local/psa/admin/htdocs/login_up.php3:26

Ideas?