when i want to update my plesk to 9 it gives me this error :
AutoInstallerManager::get_install_tree() failed: AutoInstallerManager::fetch_install_tree() failed: AutoInstallerComponent, linked by AutoInstallerDependency, not found.
0: /usr/local/psa/admin/plib/common_func.php3:190
psaerror(string 'AutoInstallerManager::get_install_tree() failed: AutoInstallerManager::fetch_install_tree() failed: AutoInstallerComponent, linked by AutoInstallerDependency, not found.')
1: /usr/local/psa/admin/htdocs/server/autoinstaller_install.php:43
AutoInstallerManager::get_install_tree() failed: AutoInstallerManager::fetch_install_tree() failed: AutoInstallerComponent, linked by AutoInstallerDependency, not found.
0: /usr/local/psa/admin/plib/common_func.php3:190
psaerror(string 'AutoInstallerManager::get_install_tree() failed: AutoInstallerManager::fetch_install_tree() failed: AutoInstallerComponent, linked by AutoInstallerDependency, not found.')
1: /usr/local/psa/admin/htdocs/server/autoinstaller_install.php:43