Haw. Code R. § 15-19-57
Failure to pay any installment or any part of an installment, whether of principal or interest or both, when due, shall cause the whole of the unpaid principal to become due and payable immediately, and the delinquent installment or installments or any delinquent part or parts thereof, whether of principal or interest or both, shall thereafter bear penalty at the rate of one and one-half per cent per month or fraction of a month from the date of delinquency until the day of sale as hereinafter provided; but at any time prior to the day of sale the owner may pay the entire amount of the delinquent installment or installments or deliquent part or parts, whether of principal or interest or both, with penalty, and all costs and expenses accrued, and shall thereupon be restored to the right thereafter to pay in installments in the same manner as if default had not been made.
Haw. Code R. § 15-19-57