[need help quickly]

well i was trying to make a new item for TTT 2.5.2 from gusKis and i start to make one from the existing item AWP but i dont know why when i compile this .sma i its take me error

PHP Code:

#include <amxmodx>
#include <engine>
#include <cs_weapons_api>
#include <amx_settings_api>
#include <ttt>

#define WEAPON_CSWID CSW_M4A1
#define WEAPON_NAME "weapon_m4a1"

new g_iItemID;
new g_szModels[3][TTT_FILELENGHT];
new cvar_weapon_damage, cvar_weapon_speed, cvar_weapon_ammo, cvar_weapon_clip, cvar_weapon_price, cvar_weapon_reload, cvar_weapon_recoil;

public plugin_precache()
{
    if(!amx_load_setting_string(TTT_SETTINGSFILE, "M4A1", "MODEL_V", g_szModels[0], charsmax(g_szModels[])))
    {
        g_szModels[0] = "models/v_m4a1.mdl";
        amx_save_setting_string(TTT_SETTINGSFILE, "M4A1", "MODEL_V", g_szModels[0]);
    }
    precache_model(g_szModels[0]);

    if(!amx_load_setting_string(TTT_SETTINGSFILE, "M4A1", "MODEL_P", g_szModels[1], charsmax(g_szModels[])))
    {
        g_szModels[1] = "models/p_m4a1.mdl";
        amx_save_setting_string(TTT_SETTINGSFILE, "M4A1", "MODEL_P", g_szModels[1]);
    }
    precache_model(g_szModels[1]);

    if(!amx_load_setting_string(TTT_SETTINGSFILE, "M4A1", "MODEL_W", g_szModels[2], charsmax(g_szModels[])))
    {
        g_szModels[2] = "models/w_m4a1.mdl";
        amx_save_setting_string(TTT_SETTINGSFILE, "M4A1", "MODEL_W", g_szModels[2]);
    }
    precache_model(g_szModels[2]);
}

public plugin_init()
{
    register_plugin("[TTT] Item: M4A1", TTT_VERSION, TTT_AUTHOR);

    cvar_weapon_clip    = my_register_cvar("ttt_awp_clip",        "30",    "AWP clip ammo. (Default: 1)");
    cvar_weapon_ammo    = my_register_cvar("ttt_awp_ammo",        "30",    "AWP backpack ammo. (Default: 15)");
    cvar_weapon_speed    = my_register_cvar("ttt_awp_speed",        "1",    "AWP attack speed delay. (Default: 0.0)");
    cvar_weapon_damage    = my_register_cvar("ttt_awp_damage",    "1.0",    "AWP damage multiplier. (Default: 1.0)");
    cvar_weapon_reload    = my_register_cvar("ttt_awp_reload",    "0.0",    "AWP reloadspeed delay. (Default: 0.0)");
    cvar_weapon_recoil    = my_register_cvar("ttt_awp_recoil",    "0.0",    "AWP recoil multiplier. (Default: 0.0)");
    cvar_weapon_price    = my_register_cvar("ttt_price_awp",        "1",    "AWP price. (Default: 1)");
}

public ttt_plugin_cfg()
{
    new name[TTT_ITEMLENGHT];
    formatex(name, charsmax(name), "%L", LANG_PLAYER, "TTT_ITEM_ID16");
    g_iItemID = ttt_buymenu_add(name, get_pcvar_num(cvar_weapon_price), PC_DETECTIVE);
}

public ttt_item_selected(id, item, name[], price)
{
    if(g_iItemID == item)
    {
        if(user_has_weapon(id, WEAPON_CSWID))
            engclient_cmd(id, "drop", WEAPON_NAME);

        static data[STOREABLE_STRUCTURE];
        if(!data[STRUCT_CSWA_CSW])
        {
            data[STRUCT_CSWA_ITEMID] = g_iItemID;
            data[STRUCT_CSWA_CSW] = WEAPON_CSWID;
            data[STRUCT_CSWA_CLIP] = get_pcvar_num(cvar_weapon_clip);
            data[STRUCT_CSWA_MAXCLIP] = get_pcvar_num(cvar_weapon_clip);
            data[STRUCT_CSWA_AMMO] = get_pcvar_num(cvar_weapon_ammo);
            data[STRUCT_CSWA_STACKABLE] = true;
            data[STRUCT_CSWA_SILENCED] = -1;
            data[STRUCT_CSWA_SPEEDDELAY] = _:get_pcvar_float(cvar_weapon_speed);
            data[STRUCT_CSWA_DAMAGE] = _:get_pcvar_float(cvar_weapon_damage);
            data[STRUCT_CSWA_RELOADTIME] = _:get_pcvar_float(cvar_weapon_reload);
            data[STRUCT_CSWA_RECOIL] = _:get_pcvar_float(cvar_weapon_recoil);
            data[STRUCT_CSWA_MODEL_V] = g_szModels[0];
            data[STRUCT_CSWA_MODEL_P] = g_szModels[1];
            data[STRUCT_CSWA_MODEL_W] = g_szModels[2];
        }

        cswa_give_specific(id, data);

        client_print_color(id, print_team_default, "%s %L", TTT_TAG, id, "TTT_ITEM2", name, id, "TTT_ITEM5");
        return PLUGIN_HANDLED;
    }

    return PLUGIN_CONTINUE;
}