Partial power outage

You probably overloaded the circuit when using so many devices at the same time.

If this is what it caused the trip of the breaker, then the solution is to reset the breaker. You just look at the breaker which handle is in Off position or in the middle showing a red label inside, you move back the breaker handle to Off position, and return it back to On position.

Don't try to just moving it from the center to On position because such won't work. You must move it completely to Off position first.

If you can't find the faulty breaker -because sometimes they trip but won't show it- then reset the whole circuit breakers you see in the box but the main circuit breaker.

If reset of the circuit breaker doesn't work, then the fault must be or inside the panel box -a lose wire, a burnt circuit breaker- or there is a loose contact in the wiring somewhere.

If you have installed a new cabinet, or something that implies drilling inside a wall, then you must have cut off a wire.

Mostly, the trip of a circuit breaker is overload.

You should call your electrician back and have him check your main breaker and panel. Sounds like you may have lost one phase or possibly part of your neutral system. We could get into readings you could take but if you are not familiar with trouble shooting it would probably be quicker and safer to have an electrician check things out.