Your report has been sent to TopG Team.
The IP address of Mineplex Minecraft server is us.mineplex.com
Open the game Minecraft, click "Play" button then choose "Multiplayer" option from the menu. Click "Add Server" tab and input the text us.mineplex.com on "Server Address" then hit "Done". Once the connection is available and turns green you may click on "Join Server" button to play on Mineplex.
The Mineplex server is currently hosted in United States.