The console of my Admin Server is displaying the following error message every
30 seconds:

<04.03.2004 15.11 Uhr CET> <000000> Error Transmitting Change#155
- [LDAP: error code 32 - No Such Object]>

Do you know what it means?

It used to work all right until I changed something in the security configuration
(but i think i have returned to my old working configuration, and the problem
wasn't solved).