If a conservator, after notice, fails to file his or her accounts and vouchers for a final or partial settlement or if the personal representative of a conservator, after notice, fails to file the accounts and vouchers of his or her testator or intestate for final settlement, the court of probate has authority to state an account against the conservator or against his or her personal representative from the materials on file or of record in the court and from such evidence as may be adduced, charging such conservator with all wherewith he or she is by law chargeable and crediting him or her with all wherewith by law he or she ought to be credited.