Error 2: Here I will try to describe specific steps which will lead us to the error 404 screen; 1- Fisrt we search for records with multiple items (books or serials, does not matter) 2- We open this record we found with multiple items for editing 3- We chose "Edit items in batch" option from the "Edit" menu 4- We make corrections on the fields under the "Edit item" (For example we change the collection code as "fiction") 5- We save this using "Save button" at the bottom, after we are done. 6- Just after we save, there will be a button named "Done" available just under the page, and when we click on "Done" we encounter the Error screen. Thank you very musch for your support. Ugur BULGAN