OracleCRService service terminated unexpectedly.

Dear all
On Windows2003 the Event Viewer shows

The OracleCRService service terminated unexpectedly. It has done this 2 time(s).

The description for Event ID ( 34 ) in Source ( Oracle.ctcnfzf2 ) cannot be found. The local computer may not have the necessary registry information or message DLL files to display messages from a remote computer. You may be able to use the /AUXSOURCE= flag to retrieve this description; see Help and Support for details. The following information is part of the event: ACTION : 'CONNECT' DATABASE USER: '/' PRIVILEGE : SYSDBA CLIENT USER: NT AUTHORITY\SYSTEM CLIENT TERMINAL: FZFPUB02 STATUS: 0 .

Sometime I start this service manually. I use Oracle 10g RAC. What's the cause of an error?

Many thanks in advance