[Koha] Renew Date problem with koha 19.05

Hi All, Recently I am facing a problem while renew the checkout book in koha 19.05 .  I allocated 14 days for loan period, But when i renew the book  the system is not adding the loan period (current date + 14 days). system is showing current date.  Is there any option to be change current system preference ?. Now the system preference is showing "RenewalPeriodBase: the current date" Regards, Dixson