[RBE sLayeR]

Found solution ... So the problem was in Kit_damage plugin
Credits : Thanks to Sannchezz#3407 in Discord for helping with that problem

Here is the fixed Kit_damage.sma

PHP Code:

#include <amxmodx>
#include <hamsandwich>
#include <engine>
#include <zombieplague>
#include <fun>
#include <fakemeta_util>

new cvar_knife_dmg, cvar_m3_dmg
new cvar_deagle_dmg, g_itemid, cvar_health, cvar_armor
new cvar_red, cvar_green, cvar_blue

new bool:g_bHasKitDamage[33], g_maxplayers, g_msgSayText

new const v_m3_model[] = "models/v_m3_released.mdl"
new const p_m3_model[] = "models/p_m3_released.mdl"

public plugin_init() 
{
    register_plugin("Damage Kit" , "1.3b", "lucas_7_94")
    register_cvar ("zp_extra_damage", "1.3b", FCVAR_SERVER)
    RegisterHam(Ham_TakeDamage, "player", "fw_TakeDamage")
    register_event("HLTV", "event_round_start", "a", "1=0", "2=0")
    register_event("CurWeapon", "event_CurWeapon", "be", "1=1")
    g_itemid = zp_register_extra_item("Kit De Damage", 50, ZP_TEAM_HUMAN)
    cvar_m3_dmg = register_cvar ("zp_m3_damage", "6.0")
    cvar_knife_dmg = register_cvar ("zp_knife_damage", "4.0")
    cvar_deagle_dmg = register_cvar ("zp_deagle_damage", "6.0")
    cvar_health = register_cvar ("zp_kit_health", "400")
    cvar_armor = register_cvar ("zp_kit_armor", "500")
    cvar_red = register_cvar ("zp_kit_glow_R", "000")
    cvar_green = register_cvar ("zp_kit_glow_G", "255")
    cvar_blue = register_cvar ("zp_kit_glow_B", "255")
    g_maxplayers = get_maxplayers()
    g_msgSayText = get_user_msgid("SayText")
}

public plugin_precache()
{
    precache_model(v_m3_model)
    precache_model(p_m3_model)
}

public event_round_start() 
{
    for(new id = 1; id <= g_maxplayers; id++) 
        g_bHasKitDamage[id] = false     
}

public zp_user_infected_post(infected, infector)
{
    if (g_bHasKitDamage[infected])
    {
        g_bHasKitDamage[infected] = false
    }
}

public fw_player_killed(victim, attacker, shouldgib)
{
    if(g_bHasKitDamage[victim])
    {
        KitDamage(victim, "^x04[Kit Damage] You do not have the kit Damage!")
        g_bHasKitDamage[victim] = false
    }
}

public zp_extra_item_selected(player, itemid)
{
    if (itemid == g_itemid)
    {
        if(g_bHasKitDamage[player])
        {
            KitDamage(player, "^x04[Zombie Plague] You already have the Damage Kit")
            //zp_set_user_ammo_packs(player, zp_get_user_ammo_packs(player) + 50)
            
            return;
        }
        else
        {
            g_bHasKitDamage[player] = true
            fm_set_user_health(player, get_user_health(player) + get_pcvar_num(cvar_health));
            fm_set_user_armor(player, get_user_armor(player) + get_pcvar_num(cvar_armor));
            fm_set_rendering(player, kRenderFxGlowShell, (cvar_red), (cvar_green), (cvar_blue), kRenderNormal, 16);
            fm_strip_user_weapons(player)
            give_item(player, "weapon_knife")
            give_item(player, "weapon_deagle")
            give_item(player, "weapon_m3")
            KitDamage(player, "^x04[Zombie Plague] You purchased a kit Damage!!")
        }
    }
}

public event_CurWeapon(id)
{
    new weapid = read_data(2)
    
    if(!is_user_alive(id))
        return;
    
    if(g_bHasKitDamage[id] && weapid == CSW_M3)
    {
        entity_set_string(id, EV_SZ_viewmodel, v_m3_model)  
        entity_set_string(id, EV_SZ_weaponmodel, p_m3_model)    
    }
}

public fw_TakeDamage(victim, inflictor, attacker, Float:damage, damage_type)
{
    if(!(1 <= attacker <= g_maxplayers))
        return HAM_IGNORED;
    
    if(get_user_weapon(attacker) != CSW_M3)
        if(get_user_weapon(attacker) != CSW_DEAGLE)
        if(get_user_weapon(attacker) != CSW_KNIFE)
        return HAM_IGNORED;
    
    if (get_user_weapon(attacker) && g_bHasKitDamage[attacker])
    {
        SetHamParamFloat(4, damage * get_pcvar_float(cvar_m3_dmg))
        SetHamParamFloat(4, damage * get_pcvar_float(cvar_deagle_dmg))
        SetHamParamFloat(4, damage * get_pcvar_float(cvar_knife_dmg))
    }
    
    return HAM_IGNORED;
}  

KitDamage(target, const message[], any:...)
{
static buffer[512], i, argscount
argscount = numargs()

// Send to everyone
if (!target)
{
    static player
    for (player = 1; player <= g_maxplayers; player++)
    {
        // Not connected
        if (!is_user_connected(player))
            continue;
            
            static changed[5], changedcount;
            changedcount = 0
            
            for (i = 2; i < argscount; i++)
            {
                if (getarg(i) == LANG_PLAYER)
                {
                    setarg(i, 0, player)
                    changed[changedcount] = i
                    changedcount++
                }
            }
            
            vformat(buffer, sizeof buffer - 1, message, 3)
            
            message_begin(MSG_ONE, g_msgSayText, _, player)
            write_byte(player)
            write_string(buffer)
            message_end()
            
            for (i = 0; i < changedcount; i++)
                setarg(changed[i], 0, LANG_PLAYER)
        }
    }
    else
    {
        
        // Format message for player
        vformat(buffer, sizeof buffer - 1, message, 3)
        
        // Send it
        message_begin(MSG_ONE, g_msgSayText, _, target)
        write_byte(target)
        write_string(buffer)
        message_end()
    }
}