[undeteker]

public OnPlayerDisconnect(playerid, reason) return g_Name[playerid][0] = EOS;
public OnPlayerRequestSpawn(playerid) return GetPVarInt(playerid, "Logged")?(1)0);
public OnPlayerCommandText(playerid, cmdtext[]) return GetPVarInt(playerid, "Logged")?(1)0);
public OnDialogResponse(playerid, dialogid, response, listitem, inputtext[])

C:\Users\Yair\Desktop\MyServer\gamemodes\YairMode. pwn(45) : warning 225: unreachable code
C:\Users\Yair\Desktop\MyServer\gamemodes\YairMode. pwn(86) : error 010: invalid function or declaration
C:\Users\Yair\Desktop\MyServer\gamemodes\YairMode. pwn(235) : error 021: symbol already defined: "OnPlayerCommandText"
C:\Users\Yair\Desktop\MyServer\gamemodes\YairMode. pwn(295) : error 021: symbol already defined: "OnPlayerRequestSpawn"
C:\Users\Yair\Desktop\MyServer\gamemodes\YairMode. pwn(380) : error 021: symbol already defined: "OnDialogResponse"
C:\Users\Yair\Desktop\MyServer\gamemodes\YairMode. pwn(38 : warning 235: public function lacks forward declaration (symbol "RegisterOrLogin")
C:\Users\Yair\Desktop\MyServer\gamemodes\YairMode. pwn(392) : warning 203: symbol is never used: "IsNumeric"
C:\Users\Yair\Desktop\MyServer\gamemodes\YairMode. pwn(392) : warning 203: symbol is never used: "ReturnUser"
C:\Users\Yair\Desktop\MyServer\gamemodes\YairMode. pwn(392) : warning 203: symbol is never used: "ret_memcpy"
Pawn compiler 3.2.3664 Copyright © 1997-2006, ITB CompuPhase


4 Errors.

[Infinity]

It seems you messed up your brackets somewhere.
I also want to inform you this is not the correct section to ask for help with scripting.

[undeteker]

so where ? and you have skype that you can help me ?