Please check & reset GFCI button on the outlets.  If the non-functioning outlet does not have a reset button then the outlet that services that outlet may be found on another outlet in the kitchen, bathroom, garage or exterior.  Simply push the reset button on the GFCI outlet and this will possibly revive power to the outlet. Sometimes there is more than one GFCI, so check around the house, be aware of all locations before a problem occurs.