[mcivo]

I downloaded crashdetect and nativechecker plugins and now i got this
Incoming connection: ip
[join] (Playername) has joined the server (ip)
Incoming connection: ip
[join] (Playername) has joined the server (ip)
Incoming connection: ip
[join] (Playername) has joined the server (ip)
Incoming connection: ip
[join] (Playername) has joined the server (ip)
Incoming connection: ip
[join] (Playername) has joined the server (ip)
Incoming connection: ip
Kicking ip because they didn't logon to the game.
Incoming connection: ip
Kicking ip because they didn't logon to the game.
Incoming connection: ip
Kicking ip because they didn't logon to the game.

I have searched this many times but i don`t get te solution. .I need help.Can anyone help me ??