I get the same messages after upgrading to 11.4.6
ERROR Indexer (Indexer ) Sun Jun 6 06:13:20 2010
[OM.DMON 3007] The SIS has been unable to process the Indexer's request. Details:
SIS could not handle this request.
Reason: 500 (Internal Server Error)
Indexer Service has discarded the message:
User name: Einar H. Haraldsson /tr,rkvk1
IndexId: 1972040a-4386d305-4c08f779-1e3ea82
Attempted action: Add item 00255784c6b690c9 to folder 0001a564501f8b7e
Pid of logging process: 5054
any news on a fix for this ?