Nemesis/Survivor Disable

Hello guys, I don´t know if this site is still active, but my friend has recreated one old zombie server for fun, for some old memories and nostalgia.
I want to help him to succeed. There is one plugin that we can not fix. It´s about Nem/Surv AutoSlay. This is how plugin should work:

- If admin turns a player into Nemesis or Survivor before 5 rounds since last Nem/Surv round, player will get slayed.

I found the plugin I was looking for, but it has bug. If player gets turned into Nem or Surv by server, he gets killed. I want to bypass that, it has to slay only if admin turns someone.

I have maybe better solution, instead of getting slayed, is it possible to just disable nem/surv in admin menu (and consule commands too) until rounds reaches 5?

Here is code:

#include <amxmodx>

#include <cstrike>

#include <fakemeta>

#include <zombieplague>



new i, round;



public plugin_init()

{

   register_plugin("[ZP] Auto Slay", "0.1", "Torge")

   round = register_cvar("zp_rounds", "5") // After 5 round can make nemesis/survivor

   register_concmd("zp_rounds", "zp_rounds") // Console command

}



public zp_rounds()

{

 

   if (i < get_pcvar_num(round))

   {

       client_print(0, print_console, "[ZP] Rounds after last nemesis/survivor: %i.", i)

   }else

       client_print(0, print_console, "[ZP] Rounds after last nemesis/survivor: %i. You CAN make nemesis or survivor NEXT ROUND!", i)

}



public zp_round_started(gamemode, id)

{

 

   if (gamemode == MODE_SURVIVOR)

   {

       

       if (i < get_pcvar_num(round))

       {

        i=0;

        static name[32]

        get_user_name(id, name, 32)

       



        client_print(0, print_chat, "Player %s has been slayed for making nemesis too early! ", name)

        user_kill(id)

     

        }

   }

 

   if (gamemode == MODE_NEMESIS)

   {

 

       if (i < get_pcvar_num(round))

       {

        i=0;

        static name[32]

        get_user_name(id, name, 32)

     

        client_print(0, print_chat, "Player %s has been slayed for making nemesis too early! ", name)

        user_kill(id)

 

        }

   }



if(gamemode == MODE_INFECTION)

{i++

}



if(gamemode == MODE_SWARM)

{i++

}



if(gamemode == MODE_PLAGUE)

{i++

}



if(gamemode == MODE_MULTI)

{i++

}

}