[Koha] Patron is blocked after payment of overdue fine-reg

dear friends, I am using Koha 3.02.05.000 on Linux platform and i hav faced a problem in circulation module. After making payment of overdue fine from a particular patron, the patron is blocked for further check out. The message is displayed like this when trying for a check out "Patron has had overdue items and is blocked for 360 day(s)." expecting reply -- manoj kumar Librarian NAS college Kerala India