После смены выключается плагин

#include <amxmodx>
#include <fun>
#include <cstrike>
#include <hamsandwich>
#include <engine>
#include <fakemeta>

new cvar_enabled, cvar_hp, cvar_hp_hs, cvar_gamename, amx_gamename

public plugin_init()
{
register_plugin("Knife DeathMatch", "1.1", "Lucky")

register_event("DeathMsg", "on_Death", "a")
register_logevent("logevent_team_join", 3, "1=joined team")

cvar_enabled = register_cvar("amx_knifedm", "0")
cvar_hp = register_cvar("amx_knifedm_hp", "0")
cvar_hp_hs = register_cvar("amx_knifedm_hp_hs", "0")
cvar_gamename = register_cvar("amx_knifedm_gamename", "1")

if(get_pcvar_num(cvar_gamename) == 1)
{
amx_gamename = register_cvar("amx_gamename", "|#|KniFe AreNa|#|" )
register_forward(FM_GetGameDescription, "GameDesc")
}

if(get_pcvar_num(cvar_enabled) == 1)
{
remove_entity_name("func_bomb_target")
remove_entity_name("info_bomb_target")
remove_entity_name("hostage_entity")
remove_entity_name("func_hostage_rescue")
remove_entity_name("info_hostage_rescue")
remove_entity_name("info_vip_start")
remove_entity_name("func_vip_safetyzone")
remove_entity_name("func_escapezone")

removeweapons()

server_cmd("sv_restart 2")
}
}

public logevent_team_join()
{
if(get_pcvar_float(cvar_enabled) == 1)
{
new id = get_loguser_index()
set_task(1.0, "spawn_user", id)
}
}

stock get_loguser_index()
{
static loguser[80], name[32];
read_logargv(0,loguser,79);
parse_loguser(loguser,name,31);

return get_user_index(name);
}

public on_Death()
{
if(get_pcvar_float(cvar_enabled) == 1)
{
new id = read_data(2)
set_task(1.0, "spawn_user", id)
}
}

public spawn_user(id)
{
if(cs_get_user_team(id) == CS_TEAM_SPECTATOR)
{
return PLUGIN_HANDLED
}

ExecuteHamB(Ham_CS_RoundRespawn, id)
return PLUGIN_HANDLED
}

public client_death(killer, victim, wpnindex, hitplace, TK)
{
if(get_pcvar_float(cvar_enabled) == 1)
{
if(hitplace == HIT_HEAD)
{
set_user_health(killer, get_user_health(killer) + get_pcvar_num(cvar_hp_hs))

set_hudmessage(255, 0, 0, 0.1, -1.0, 0, 6.0, 10.0)
show_hudmessage(killer, "HeadShot")
}
else
{
set_user_health(killer, get_user_health(killer) + get_pcvar_num(cvar_hp))
}
}
}

public client_connect(id)
{
if(get_pcvar_num(cvar_enabled) == 1)
{
set_task(20.0, "connect_ads", id)
}
}

public connect_ads(id)
{
client_print(id, print_chat, "[Kn1Fe Server] Включен режим KniFe DM!")
client_print(id, print_chat, "Устройте Мясо на Сервере!")
}

public GameDesc()
{
static gamename[32]
get_pcvar_string(amx_gamename, gamename, 31)
forward_return(FMV_STRING, gamename)
return FMRES_SUPERCEDE
}

removeweapons()
{
new weapon, nnumr

while ((weapon = find_ent_by_class(-1,"armoury_entity")))
{
remove_entity(weapon)
nnumr++
}
}