[Lynne]

As Marco said, there is no field named "extratype" in the attachment table by default. You have a query somewhere that is looking for it though. If you already looked through all your files, then you need to look through your products. You didn't post the complete error in your first post because it would have said what page is making that query. You can look in your error_logs and probably find out what line the query is getting called on and if it's a hook location, then you just need to look through your products for anything that uses that hook.