Outlet in Kitchen Not Working
It sounds like you have 2 outlets on one circuit (GFCI + 2nd on load terminals from GFCI) and 1 outlet that is on an entirely different circuit. So there are two issues:


Where does "outlet 2" chain to?


There are a few ways to figure this out. The simplest might be to push the TEST button on the GFCI. That should turn off the GFCI (obviously) and outlet 2. Assuming it does, then go around the house and see if you can find another outlet (or possibly even a light - that would be strange but nothing is impossible) that no longer works. You should find something, somewhere. Then RESET the GFCI to make sure you found the right "problem".


Where is "outlet 3" coming from?


First check the rest of the house (bathrooms, garage, circuit breaker panel) for any other GFCIs. If you find any, reset them and see if that solves the problem.

Also, obviously, check for any regular (as opposed to GFCI or AFCI) breakers that have tripped or fuses that have blown. If you find one, that is likely to be the source of the problem - and hopefully easy to fix.

If all else fails, then you may have a bad connection going to outlet 3 from someplace else, without anything else having failed. Then you have a few choices. You can either get wire tracing tools or just methodically check every outlet for backstabs or loose wires until you find the problem. Which may take a while.