[Koha] Item circulation history not seen

[Sahadeo Taware]

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