Hello all, Just looking for reassurance that the errors I'm seeing in my database upgrade output are nothing to worry about. Most of them are messages about tables, columns and entries already existing in the database. There is one that I've highlighted below that looks more worrisome. http://pastebin.com/zNgxik9Q Line 161: DBD::mysql::db do failed: Cannot add or update a child row: a foreign key constraint fails (`koha/#sql-755_1d`, CONSTRAINT `subscriptionroutinglist_ibfk_2` FOREIGN KEY (`subscriptionid`) REFERENCES `subscription` (`subscriptionid`) ON DELETE CASCADE ON UPDATE CASCADE) at installer/data/mysql/updatedatabase.pl line 3835. 1. Am I correct about the duplicate tables, columns & entries errors not being a concern? 2. We don't use the serials routing list; can I ignore this error? Thanks for your time! Cheers, Christopher Chagal Assistant Technical Librarian / Assistant IT Officer American Philosophical Society - Library Hall 105 South Fifth Street Philadelphia, PA 19106-3386 Tel. (215) 599-4299 chagal@amphilsoc.org Main Library number: (215) 440-3400 APS website: www.amphilsoc.org