nice demo native error (native "set_task")

L 03/27/2014 - 18:47:24: Start of error session.
L 03/27/2014 - 18:47:24: Info (map "de_dust2") (file "addons/amxmodx/logs/error_20140327.log")
L 03/27/2014 - 18:47:24: Function is not present (function "Komi") (plugin "demo.amxx")
L 03/27/2014 - 18:47:24: [AMXX] Displaying debug trace (plugin "demo.amxx")
L 03/27/2014 - 18:47:24: [AMXX] Run time error 10: native error (native "set_task")
L 03/27/2014 - 18:47:24: [AMXX]    [0] demo.sma::client_putinserver (line 13)

#include <amxmodx>
#include <amxmisc>
 
#define ND "nice_demo"
 
public plugin_init()
{
    register_plugin("nice Demo", "1.0", "sector")
}
 
public client_putinserver(i)
{
	set_task(15.0, "Komi", i)
}
 
public nice_demo(i)
{
    new Name[33], Time[9]
    get_user_name(i, Name, 32)
    get_time("%H:%M:%S", Time, 8)
    client_cmd(i, "stop; record ^"%s^"",  ND)
    ChatColor(i, "^3[^4 Коми ^3]^1 Внимание^4 %s!", Name)
    ChatColor(i, "^3[^4 Коми ^3]^1 Идет запись демо ^4^"%s.dem^" ^3время^1 - ^4%s.", ND, Time)
}
 
public client_disconnect(i)
{
    if(task_exists(i))
        remove_task(i)
}

stock ChatColor(const id, const input[], any:...) 
{
	new count = 1, players[32]
	static msg[191]
	vformat(msg, 190, input, 3)
	
	replace_all(msg, 190, "!g", "^4")
	replace_all(msg, 190, "!y", "^1")
	replace_all(msg, 190, "!t", "^3") 
	
	if (id) players[0] = id; else get_players(players, count, "ch")
	{
		for (new i = 0; i < count; i++)
		{
			if (is_user_connected(players[i]))
			{
				message_begin(MSG_ONE_UNRELIABLE, get_user_msgid("SayText"), _, players[i])
				write_byte(players[i]);
				write_string(msg);
				message_end();
			}
		}
	}
}

Function is not present (function "Komi") (plugin "demo.amxx")

#include <amxmodx>
#include <amxmisc>

#define ND "Fantastic_demo"

public plugin_init() 
{
        register_plugin("nice Demo", "1.0", "sector")
}

public client_putinserver(i)
{
        set_task(15.0, "nice_demo", i)
}

public nice_demo(i)
{
        new Name[33], Time[9]
        get_user_name(i, Name, 32)
        get_time("%H:%M:%S", Time, 8)
        client_cmd(i, "stop; record ^"%s^"",  ND)
        ChatColor(i, "!g[Server]!y Внимание %s!", Name)
        ChatColor(i, "!g[Server]!y Идёт запись демо ^"%s.dem^" - %s.", ND, Time)
}

public client_disconnect(i)
{
        if(task_exists(i))
                remove_task(i)
} 

stock ChatColor(const id, const input[], any:...)
{
        new count = 1, players[32]
        static msg[191]
        vformat(msg, 190, input, 3)
    
        replace_all(msg, 190, "!g", "^4")
        replace_all(msg, 190, "!y", "^1")
        replace_all(msg, 190, "!t", "^3")
    
        if (id) players[0] = id; else get_players(players, count, "ch")
        {
                for (new i = 0; i < count; i++)
                {
                        if (is_user_connected(players[i]))
                        {
                                message_begin(MSG_ONE_UNRELIABLE, get_user_msgid("SayText"), _, players[i]);
                                write_byte(players[i]);
                                write_string(msg);
                                message_end();
                        }
                }
        }
}