Find the outlet that has the test/reset buttons on it. They are always hooked to the outlets by the sink and outside. Press the reset button.
If it resets and then kicks off again right away unplug everything plugged into that circuit and try again. If it resets, one at a time plug in the items you have unplugged. One of them will likely cause the ground fault and need to be replaced.
If it won't reset at all you do not have electric to the circuit and need to start at the breaker box.
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