[California]

pawn Код:

public OnPlayerConnect(playerid)
{
    GetPlayerName(playerid, UserStats[playerid][Name], MAX_PLAYER_NAME);
    if(CheckAccountExists(UserStats[playerid][Name]))
    {
        AccountExists[playerid] = 1;
        ShowPlayerDialog(playerid, 2, DIALOG_STYLE_INPUT, "Welcome Back To New Life Gaming", "Please Login, insert your password below", "Login", "Leave");
        return 1;
    }
    else if(!CheckAccountExists(UserStats[playerid][Name]))
    {
        AccountExists[playerid] = 0;
        ShowPlayerDialog(playerid, 1, DIALOG_STYLE_INPUT, "Welcome To New Life Gaming", "Please Register, insert a password below", "Register", "Leave");
        return 1;
    }
    return 1;
}

Brackets, ugh.