Knockback issue

Instead of only the combo warp having altered kb, all of the warps have kb lower than the default kb. What is the issue with the code?

<?php


namespace RRdescry\VaserPractice\Managers\ArenaManager\Modules\FFA;

use pocketmine\event\entity\EntityDamageByEntityEvent;
use pocketmine\event\entity\EntityDamageEvent;
use pocketmine\event\Listener;
use pocketmine\math\Vector3;
use pocketmine\Player;
use RRdescry\VaserPractice\Main;

class FFAListener implements Listener
{
public function onAttackEntity(EntityDamageEvent $event): void {
$entity = $event->getEntity();
if($entity instanceof Player){
if(Main::$instance->playerManager->players[$entity->getName()]["InArena"][0] == true){
$arena = Main::$instance->playerManager->players[$entity->getName()]["InArena"][0];
if($arena instanceof FFAArena && $arena->name == "Combo"){
if($event instanceof EntityDamageByEntityEvent){
if($entity->distance(new Vector3($entity->getFloorX(), $entity->getFloorY(), $entity->getFloorZ())) < 5){
$event->setKnockBack($event->getKnockBack() * 1);
}else{
$event->setKnockBack(0.4);
}
}
}
}
}
}
}

 

Have a check for the world, not whatever

PHP:

$arena = Main::$instance->playerManager->players[$entity->getName()]["InArena"][0];
if($arena instanceof FFAArena && $arena->name == "Combo"){


this is, because whatever it's supposed to do, clearly it's not working.