[arjanforgames]

I get these errors, please help me.
I've marked the line numbers.

C:\Users\Arjan\Desktop\MIJN RP\gamemodes\MYRP.pwn(66) : error 025: function heading differs from prototype
C:\Users\Arjan\Desktop\MIJN RP\gamemodes\MYRP.pwn(67) : error 021: symbol already defined: "strreplace"
C:\Users\Arjan\Desktop\MIJN RP\gamemodes\MYRP.pwn(75) : warning 209: function "strreplace" should return a value
Pawn compiler 3.2.3664 Copyright © 1997-2006, ITB CompuPhase


2 Errors.

SCRIPT:

Code:

//---------------CHAT SYSTEM--------------------
stock strreplace(string[], find, replace)
{
    for(new i=0; string[i]; i++)
    {
        if(string[i] == find)
        {
            string[i] = replace;
        }
    }
}

stock GetName(playerid)
{
    new
        name[24];
    GetPlayerName(playerid, name, sizeof(name));
    strreplace(name, "_", " ");
    return name;
}

stock ProxDetector(Float:radi, playerid, string[],color)
{
    new Float:x,Float:y,Float:z;
    GetPlayerPos(playerid,x,y,z);
    foreach(Player,i)
    {
        if(IsPlayerInRangeOfPoint(i,radi,x,y,z))
        {
            SendClientMessage(i,color,string);
        }
    }
}

Please help me, I will +rep!