Is there ANYTHING in this .gsc file that explains eventual crashes??

[Gangorra]

SO i'm hosting some servers in here and for some reason my GSC makes it crash after a couple of good minutes.

People can play to high rounds and thing but all of a sudden it crashes for no apparent reason.
there are absolutely 0 patterns. No time related, no round related, nothing.

Can you guys help me?

(Yeah Identation is quite messed up but still)

/*
*	 Black Ops 2 - GSC Studio by iMCSx
*
*	 Creator : Gangorra
*	 Project : Teste
*    Mode : Zombies
*	 Date : 2020/04/21 - 02:03:13	
*
*/	

#include maps\mp\_utility;
#include common_scripts\utility;
#include maps\mp\gametypes_zm\_hud_util;
#include maps\mp\gametypes_zm\_hud_message;
#include maps\mp\zombies\_zm_utility;

init()
{
    level thread onPlayerConnect();
    level thread drawZombiesCounter();
}

onPlayerConnect()
{
    for(;;)
    {
        level waittill("connected", player);
        player thread onPlayerSpawned();
        player thread healthPlayer();
        player thread killCount();
        player thread showScore();
        player thread showDiscord();
    }
}

onPlayerSpawned()
{
    self endon("disconnect");
	level endon("game_ended");
    for(;;)
    {
        self waittill("spawned_player");
		// Will appear each time when the player spawn, that's just an exemple.
		self iprintln("^2Bem-vindo ao Zombies ^1Gangorra Aidetica!");
    }
}

healthPlayer()

{
	self endon("disconnect");
	self.healthText = createFontString("Objective" , 1.2); //Fixed
    self.healthText setPoint("CENTER", "BOTTOM", -100, 20);
    while(true)
          {
           self.healthText setText( "^2HP: ^7"+ self.health);
           wait 0.5;
          }
}

drawZombiesCounter()
{
    level.zombiesCounter = createServerFontString("Objective" , 1.3);
    level.zombiesCounter setPoint("CENTER", "BOTTOM", -160, 20);
    level thread updateZombiesCounter(); 
}

updateZombiesCounter()
{
    oldZombiesCount = get_current_zombie_count();
    while(true)
    {   	
        newZombiesCount = get_current_zombie_count();
        wait 0.4;
        if(oldZombiesCount != newZombiesCount)
        {
            level thread updateZombiesCounter();
            return;
        }
        else
        {
        	if(newZombiesCount != 0)
        		level.zombiesCounter.label = &"Zumbis: ^1";
        	else
        		level.zombiesCounter.label = &"Zumbis: ^5";
        	level.zombiesCounter setValue(newZombiesCount);
        }
    }
}

killCount()
{
	i = 0;

	while( i < level.players.size)
	{
		if(level.players[i] == self)
		{
			self thread killCountSelf(level.players[i]);
		}
		i++;
		wait 0.3;
	}
}

killCountSelf(thisPlayer)
{
	self.kill = createFontString("small" , 1.2); //Fixed
	self.kill setPoint("CENTER", "BOTTOM", -40, 20);
	while(true)
	{
		self.kill.label = &"^3Baixas:  ^7";
		self.kill setValue(thisPlayer.kills);
		wait 0.4;
	}
}

showScore()
{
	self.scoreShow = createFontString("small" , 1.2); //Fixed
	self.scoreShow setPoint("CENTER", "BOTTOM", 40, 20);
	while(true)
	{
		self.scoreShow.label = &"^6Score:  ^7";
		self.scoreShow setValue(self.score);
		wait 0.25;
	}
}

showDiscord()
{
	self.showDiscord = createFontString("small" , 1.0); //Fixed
	self.showDiscord setPoint("CENTER", "TOP", 0, -30);
	self.showDiscord setText("^3Discord:  ^7tinyurl.com/bo2gangorra");
}

[Gangorra]

SOLVED. And I hope it's a lesson to every new scripting learner.
ALWAYS. Instruct your open threads to finish.

It solved just as easy as it sounds.
One line to each open thread.

[Drgn]

Locked as he solved his issue and explained further so other people who have this issue can fix it.