Hi, We have been deploying MailManager 1.0 which is a Zope product for few months. It initially works very well. For some reason MailManager suddenly keeps returning KeyError with value such as -1074637436 (it can be any number). It seems that it is ZCTextIndex error because the error log always includes the following traceback ..... Module Products.ZCatalog.CatalogPathAwareness, line 110, in reindex_object Module Products.ZCatalog.CatalogPathAwareness, line 106, in unindex_object Module Products.ZCatalog.ZCatalog, line 558, in uncatalog_object Module Products.ZCatalog.Catalog, line 411, in uncatalogObject Module Products.ZCTextIndex.ZCTextIndex, line 181, in unindex_object Module Products.ZCTextIndex.OkapiIndex, line 68, in unindex_doc Module Products.ZCTextIndex.BaseIndex, line 176, in unindex_doc Module Products.ZCTextIndex.BaseIndex, line 304, in _del_wordinfo I do pack the database, update the catalog, restart Zope but they only can help for a short time then we encounter KeyError again. This error usually occurs when users try to modify the ticket which is Zope object. The database is about 200MB and the catalog holds > 2000 objects. Has anyone experience similar issue? I do really appreciate any help. Trung Tran Email: trung.tran@hwe.com.au