Solved "Call to a member function setItem() on null"

Hi, I am making a server core for a while now and everything works, but there is one problem and that is sometimes when player is teleported to another world it throws this error and I don't know why. (The main thing is that it errors only sometimes) Event used: EntityLevelChangeEvent

Code:

PHP:

if($target->getName() === "Lobby"){
                $player->setGamemode(2);
                $player->getInventory()->clearAll();
                $player->getArmorInventory()->clearAll();
                $this->getScheduler()->scheduleDelayedTask(new class($this, $event->getEntity()) extends Task{
                    protected $main;
                    public $player;

                    public function __construct(Main $main, CommandSender $player){
                        $this->main = $main;
                        $this->player = $player;

                    }

                    public function onRun(int $currentTick){

                            $iron = ItemFactory::get(267, 0, 1);
                            $iron->setCustomName("§l§6Minigames§r§7\n[Use]");

                            $show = ItemFactory::get(351, 10, 1);
                            $show->setCustomName("§l§7Players §aVisible§r§7\n[Use]");

                            $lang = ItemFactory::get(345, 0, 1);
                            $lang->setCustomName("§l§7Settings§r§7\n[Use]");

                            $gadgets = ItemFactory::get(467, 0, 1);
                            $gadgets->setCustomName("§l§9Gadgets§r§7\n[Use]");

                        $this->player->getInventory()->setItem(0, $iron);
                        $this->player->getInventory()->setItem(4, $gadgets);
                        $this->player->getInventory()->setItem(7, $show);
                        $this->player->getInventory()->setItem(8, $lang);
                        }

                },
                5
                );
              }

 

What error?

 

The error is in the title:
"Call to a member function setItem() on null"

 

what do you mean? how are you using $player without obj in onRun function????? what do you want to do?
no explain = no help


and

wtf? if you see 1 sec onRun fuinction you can see he used $player without player obj, why do you asking this question??

 

I know, it would be normal if it didn't work anytime but it works but sometimes it throws this error, I tried to add player object to the onRun function too, but it did the same thing. I don't know how to explain it properly. It works, the plugin works but sometimes like 2 times a day it throws this error for some reason..

 

Nvm, I think I fixed it. Thanks for your time

 

you can ger players in that func like:

PHP:

foreach(Server::getinstance()->getOnlinePlayers as $player) {
//code here
}


i think you used another files for onRun
and for that i used Server::getinstance()

 

Without the whole code neither you, neither me cannot 100% say that there is a mistake.

Also, please do not send code which doesn't work and you didn't test it. I think you need more experience to help people on pmmp forums

for example here


you have specified Server::getInstance() method wrong and also Server->getOnlinePlayers() is function, NO property as you have said.

 

i didnt get your target but i said, open your eyes, i said if you created task in another files you should use Server::getInatnce() instead $this->getServer(), you should open you eyes befor POSTING.

 

also

PHP:

foreach($this->getServer()->getOnlinePlayers as $player) {}


working fine, befor posting upgrade your knowledge bruh LMAO