[Koha] Item circulation history not seen

Dear Sir I am upgraded my koha software from 17.12 to 18.05 Now the problem is that I am not able to see the circulation history of an item it shows that the items *has never been checked out.* it show for all items which is circulated previously -- Sahadeo D. Taware Librarian, M.L.I.Sc., NET Thakur College of Science and Commerce Thakur Village, Kandivli(E), Mumbai 400101 Mob. No 9324912816