corrupted installation

[netschlurf]

Hi,
i have a corrupted plesk installation on my server.
by accident i uninstalled proftpd, so i tried to reinstall plesk 754 with autoinstaller but i did not get it working again.

After some hints i found in the forum i get the following err msg:

dnsmng::restart() failed: dnsmng failed: dnsmng: Unable to open DNS config file: No such file or directory

System error 2: No such file or directory

--------------------------------------------------------------------------------

0: /usr/local/psa/admin/plib/dns/DNSManager.php:163
DNSManager::updateDefaultDNSZone(object of type DNSZone)
1: /usr/local/psa/admin/plib/dns/DNSManager.php:107
DNSManager::syncDNSZoneAdminEmail(boolean false, string '[email protected]')
2: /usr/local/psa/admin/htdocs/server/admin_ed.php3:87
admin_ed(array, array, array)
3: /usr/local/psa/admin/htdocs/server/admin_ed.php3:177

I actually cant do an uninstall with rpm -e psa*.

Can you tell me how to resolve the upper mentioned problem, or could you tell me how i get rid of this broken installation?

best regards,
netschlurf