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Leave unplugged for at least 20 minutes.
Make sure the power switch is Off, after that amount of time.
Then plug in to the power again.
Then try turning it On again, after you are sure the power plug and power cord are both accurately and well seated in place.
After which, if it doesn't power On again, turn it Off with the switch, unplug from the power, and then see (using another powered device, of any size or type, plugged into the same power outlet) ...whether that outlet is still good, or has a popped circuit breaker or a ground fault interrupter that needs a reset, etc.
Try another outlet also, in other words.