Error when game started

When I enter the arena, the timer works normally, but when the timer runs out i get kicked from the server and the console says this error

#0 pmsrc/src/pocketmine/network/mcpe/NetworkBinaryStream(714): pocketmine\utils\Utils::errorExceptionHandler(integer 8, string[19] Undefined offset: 2, string[105] phar://D:/Minecraft Server/GameAPI/PocketMine-MP.phar/src/pocketmine/network/mcp, integer 714, array[3])
#1 pmsrc/src/pocketmine/network/mcpe/protocol/GameRulesChangedPacket(44): pocketmine\network\mcpe\NetworkBinaryStream->putGameRules(array[1])
#2 pmsrc/src/pocketmine/network/mcpe/protocol/DataPacket(127): pocketmine\network\mcpe\protocol\GameRulesChangedPacket->encodePayload()
#3 pmsrc/src/pocketmine/network/mcpe/protocol/BatchPacket(86): pocketmine\network\mcpe\protocol\DataPacket->encode()
#4 pmsrc/src/pocketmine/Server(1729): pocketmine\network\mcpe\protocol\BatchPacket->addPacket(object pocketmine\network\mcpe\protocol\GameRulesChangedPacket)
#5 pmsrc/src/pocketmine/level/Level(914): pocketmine\Server->batchPackets(array[2], array[1])
#6 pmsrc/src/pocketmine/level/Level(787): pocketmine\level\Level->actuallyDoTick(integer 5376)
#7 pmsrc/src/pocketmine/Server(2265): pocketmine\level\Level->doTick(integer 5376)
#8 pmsrc/src/pocketmine/Server(2396): pocketmine\Server->checkTickUpdates(integer 5376, double 1626766357.5761)
#9 pmsrc/src/pocketmine/Server(2152): pocketmine\Server->tick()
#10 pmsrc/src/pocketmine/Server(1992): pocketmine\Server->tickProcessor()
#11 pmsrc/src/pocketmine/Server(1586): pocketmine\Server->start()
#12 pmsrc/src/pocketmine/PocketMine(291): pocketmine\Server->__construct(object BaseClassLoader, object pocketmine\utils\MainLogger, string[28] D:\Minecraft Server\GameAPI\, string[36] D:\Minecraft Server\GameAPI\plugins\)
#13 pmsrc/src/pocketmine/PocketMine(321): pocketmine\server()
#14 pmsrc(11): require(string[83] phar://D:/Minecraft Server/GameAPI/PocketMine-MP.phar/src/pocketmine/PocketMine.)

This is my main code

<?php

namespace EmangGek\OneVsOne;

use pocketmine\Server;
use pocketmine\Player;
use pocketmine\entity\Entity;
use pocketmine\utils\TextFormat;
use pocketmine\command\CommandSender;
use pocketmine\command\Command;
use xenialdan\gameapi\API;
use xenialdan\gameapi\Arena;
use xenialdan\gameapi\Game;
use xenialdan\gameapi\Team;
use jojoe77777\FormAPI\SimpleForm;

class Main extends Game
{
    public function onEnable()
    {
        // $this->getServer()->getPluginManager()->registerEvents($this, $this);
        API::registerGame($this);
        foreach (glob($this->getDataFolder() . "*.json") as $v) {
            $this->addArena($this->getNewArena($v));
        }
    }

    public function onCommand(CommandSender $sender, Command $cmd, string $label, array $args): bool
    {
        if ($cmd->getName() === "onevsonesetup") {
            if (!$sender->hasPermission("onevsone.setup")) {
                $sender->sendMessage(TextFormat::RED . "You don't have permission to execute this command");
                return false;
            }
            if (!$sender instanceof Player) {
                $sender->sendMessage(TextFormat::RED . "Only players can execute this command");
                return false;
            }
            $this->setupArena($sender);
            return true;
        }
        if ($cmd->getName() === "onevsone") {
            if (!$sender->hasPermission("onevsone.play")) {
                $sender->sendMessage(TextFormat::RED . "You don't have permission to execute this command");
                return false;
            }
            if (!$sender instanceof Player) {
                $sender->sendMessage(TextFormat::RED . "Only players can execute this command");
                return false;
            }
            if (count($args) !== 1) {
                $sender->sendMessage(TextFormat::RED . 'Usage: /onevsone <arena>');
                return false;
            }
            if (!isset($this->getArenas()[$args[0]])) {
                $sender->sendMessage(TextFormat::RED . 'Arena not found');
                return false;
            }
            $arena = $this->getArenas()[$args[0]];
            if (!$arena->joinTeam($sender)) {
                $sender->sendMessage(TextFormat::RED . 'Error joining');
            }
            return true;
        }
        return false;
    }

    public function getNewArena(string $settingsPath): Arena
    {
        $settings = new OneVsOneSettings($settingsPath);
        $levelname = basename($settingsPath, ".json");
        $arena = new Arena($levelname, $this, $settings);
        $team = new Team(TextFormat::RESET, "Players");
        $team->setMinPlayers(2);
        $team->setMaxPlayers(2);
        $arena->addTeam($team);
        return $arena;
    }

    public function startArena(Arena $arena): void
    {
    }

    public function stopArena(Arena $arena): void
    {
    }

    public function onPlayerJoinTeam(Player $player): void
    {
    }

    public function removeEntityOnArenaReset(Entity $entity): bool
    {
        return true;
    }

    public function setupArena(Player $player): void
    {
        $worlds = API::getAllWorlds();
        $form = new SimpleForm(function(Player $player, int $result = null) use ($worlds)
        {
            if ($result === null) {
                return;
            }
            $name = $worlds[$result];
            $this->getServer()->loadLevel($name);
            new OneVsOneSettings($this->getDataFolder() . $name . ".json");
            $this->addArena($this->getNewArena($this->getDataFolder() . $name . ".json"));
            $player->sendMessage(TextFormat::GOLD . TextFormat::BOLD . "Arena Setup Done!");
        });
        $form->setTitle("OneVsOne Arena Setup");
        $form->setContent("Select world you want to be an arena");
        foreach ($worlds as $world) {
            $form->addButton($world);
        }
        $form->sendToPlayer($player);
    }
}

my setting code

<?php

namespace EmangGek\OneVsOne;

use xenialdan\gameapi\DefaultSettings;

class OneVsOneSettings extends DefaultSettings
{
    public $noDamageTeam = false;
    public $noFallDamage = true;
    public $noInventoryEditing = true;
}

My system details

PocketMine-MP version: 3.22.0 [Protocol 448]
Git commit: c32c21464c30cd7059a4cbfb0a7d7e493238a561
uname -a: Windows NT 10.0 build 19042 (Windows 10) AMD64
PHP Version: 7.4.20
Zend version: 3.4.0
OS : WINNT, win

Loaded plugins:
DEVirion 1.2.7 by poggit, SOFe for API(s) 3.0.0
DevTools 1.14.2 by PocketMine Team for API(s) 3.13.0
MultiWorld 1.6.0-beta2 by CzechPMDevs, VixikCZ, fuyutsuki, kaliiks for API(s) 3.20.0
OneVsOne 1.0.0 by EmangGek for API(s) 3.22.0

inxomnyaa / gameapi

Error when game started #15