warning after indexing directory

After i have indexed my directory i have the following message when i restart the server:

--

[slapd-testAnn]: starting up server ...

[slapd-testAnn]: [06/Jul/2006:13:26:53 +0200] - Sun Java(TM) System Directory

Server/5.2_Patch_3 B2005.067.0029 (64-bit) starting up

[slapd-testAnn]: [06/Jul/2006:13:26:53 +0200] - WARNING<20801> - Backend Database -

conn=-1 op=-1 msgId=-1 - Configuration error from ldbm instance init: line 0:

unknown index rule "1.3.6.1.4.1.42.2.27.9.4.76.1.3" (ignored)

[slapd-testAnn]: [06/Jul/2006:13:26:53 +0200] - Listening on all interfaces port

12391 for LDAP requests

[slapd-testAnn]: [06/Jul/2006:13:26:53 +0200] - slapd started.

-

how can i resolve this problem?

[777 byte] By [Petty] at [2007-11-26 9:12:05]