Hello LeBogdan112,
If you are experiencing a "User already logged in"
Unfortunately, this is a server-side glitch that can happen from time to time. Whenever this occurs, wait 5 minutes then try and log in a couple of times.
There is a server side glitch that is being fixed by Admin Red the servers should be up in about a few minutes.
I apologize for the inconvenience.
my account got hacked. all of my pokemon and money were gine when I checked