Kleiner befehl fehler.. /register

Hallo Liebe Community ich bekomme 8 Errors bei meinem registrations aus/an schalt system was mache ich falsch :o

if(strcmp("/register", cmd, true) == 0)
{
new string[128];//ZEILE: 40454
if(PlayerInfo[playerid][pAdmin] == 2000)
{
SendClientMessage(playerid, COLOR_GRAD1, "Du bist kein Admin ´2000´!");
return 1;
}
if(registration == false)//ZEILE: 40460
{
registration = true;//ZEILE 40062
format(string,sizeof(string),"Admin: %s hat die Registration ausgeschaltet.",PlayerInfo[playerid][pName]);
SendClientMessageToAll(0x4BB400FF,string);
}
else
{
registration = false;//ZEILE: 40468
format(string,sizeof(string),"Admin %s hat die Registration eingeschaltet.",PlayerInfo[playerid][pName]);
SendClientMessageToAll(0x4BB400FF,string);
}
return 1;
}

C:\Users\Denis\Desktop\INDEPENDENT ROLEPLAY\gamemodes\erporiginal.pwn(40454) : warning 219: local variable "string" shadows a variable at a preceding level
C:\Users\Denis\Desktop\INDEPENDENT ROLEPLAY\gamemodes\erporiginal.pwn(40460) : warning 213: tag mismatch
C:\Users\Denis\Desktop\INDEPENDENT ROLEPLAY\gamemodes\erporiginal.pwn(40460) : warning 205: redundant code: constant expression is zero
C:\Users\Denis\Desktop\INDEPENDENT ROLEPLAY\gamemodes\erporiginal.pwn(40462) : error 022: must be lvalue (non-constant)
C:\Users\Denis\Desktop\INDEPENDENT ROLEPLAY\gamemodes\erporiginal.pwn(40462) : warning 215: expression has no effect
C:\Users\Denis\Desktop\INDEPENDENT ROLEPLAY\gamemodes\erporiginal.pwn(40468) : error 022: must be lvalue (non-constant)
C:\Users\Denis\Desktop\INDEPENDENT ROLEPLAY\gamemodes\erporiginal.pwn(40468) : warning 215: expression has no effect
Pawn compiler 3.2.3664 Copyright (c) 1997-2006, ITB CompuPhase

8 Errors.

Was da falsch wie fixxe ich das?

Zitat von DMK

Hat du die Variable string vllt irgendwo schon erstellt?

Und zeig mal wie du die Variable registration erstellt hast.

so is gefixxt trozdem danke.