L 09/30/2018 - 08:28:08: Invalid player id 123
L 09/30/2018 - 08:28:08:  [AMXX]Displaying debug trace (plugin "damagervipz.amxx", version "1.1")
L 09/30/2018 - 08:28:08:  [AMXX]Run time error 10: native error (native "get_user_flags")
L 09/30/2018 - 08:28:08:     [AMXX][0] damagervipz.sma::EVENT_Damage (line 29)

#include <amxmodx>
#include <fakemeta>

new const PLUGIN[] = "molodejj_damager"
new const VERSION[] = "1.1"
new const AUTHOR[] = "sector"

new g_MsgSync
new g_MsgSync2

new pid
new damage

public plugin_init()
{
   register_plugin(PLUGIN, VERSION, AUTHOR)
   
   register_event("Damage", "EVENT_Damage", "b", "2!0", "3=0", "4!0")
   
   g_MsgSync = CreateHudSyncObj()
   g_MsgSync2 = CreateHudSyncObj()
}

public EVENT_Damage(id)
{ 
   if(pev_valid(id))
   {
      pid = get_user_attacker(id)
     if(~get_user_flags(pid) & ADMIN_LEVEL_B) return
      damage = read_data(2)
      
      set_hudmessage(255, 0, 0, 0.45, 0.95, 2, 0.1, 1.0, 0.1, 0.1, -1)
      ShowSyncHudMsg(id, g_MsgSync2, "", damage)
      
      if(pev(pid, pev_flags) & FL_CLIENT)
      {
         set_hudmessage(255, 255, 255, -1.0, 0.55, 2, 0.1, 1.0, 0.02, 0.02, -1)
         ShowSyncHudMsg(pid, g_MsgSync, "- %i HP", damage)
      }
   }
}