Sometimes when you try to create a server you get kicked back to main menu.
Here’s how to fix it:
1.Close the game
2.Open the task manager (ctrl+shift+esc)
3.Kill pnkbuster,apache,mysql related process
4.Start the game and try to create a server
If you still get kicked back to menu try killing any process that use port 80(like skype with default option)
If all this does not work try opening port 80 and port 27015 in your internet settings