解決済み errorの原因がわかりません。解析していただけますか......?

#1
[08:10:03] [Server thread/CRITICAL]: TypeError: "Argument 1 passed to xtakumatutix\HealthStatus\Main::setTitle() must be an instance of pocketmine\Player, instance of slapper\entities\SlapperHuman given, called in phar:///minecraft/server/plugins/HealthStatus_v.1.0.6.phar/src/xtakumatutix/HealthStatus/Main.php on line 53" (EXCEPTION) in "plugins/HealthStatus_v.1.0.6.phar/src/xtakumatutix/HealthStatus/Main" at line 56
[08:10:03] [Server thread/DEBUG]: #0 plugins/HealthStatus_v.1.0.6.phar/src/xtakumatutix/HealthStatus/Main(53): xtakumatutix\HealthStatus\Main->setTitle(object slapper\entities\SlapperHuman)
[08:10:03] [Server thread/DEBUG]: #1 src/pocketmine/plugin/MethodEventExecutor(38): xtakumatutix\HealthStatus\Main->RegainHealth(object pocketmine\event\entity\EntityRegainHealthEvent)
[08:10:03] [Server thread/DEBUG]: #2 src/pocketmine/plugin/RegisteredListener(98): pocketmine\plugin\MethodEventExecutor->execute(object xtakumatutix\HealthStatus\Main, object pocketmine\event\entity\EntityRegainHealthEvent)
[08:10:03] [Server thread/DEBUG]: #3 src/pocketmine/event/Event(95): pocketmine\plugin\RegisteredListener->callEvent(object pocketmine\event\entity\EntityRegainHealthEvent)
[08:10:03] [Server thread/DEBUG]: #4 src/pocketmine/entity/Entity(1006): pocketmine\event\Event->call()
[08:10:03] [Server thread/DEBUG]: #5 src/pocketmine/entity/Human(717): pocketmine\entity\Entity->heal(object pocketmine\event\entity\EntityRegainHealthEvent)
[08:10:03] [Server thread/DEBUG]: #6 src/pocketmine/entity/Human(684): pocketmine\entity\Human->doFoodTick(integer 1)
[08:10:03] [Server thread/DEBUG]: #7 src/pocketmine/entity/Entity(1481): pocketmine\entity\Human->entityBaseTick(integer 1)
[08:10:03] [Server thread/DEBUG]: #8 src/pocketmine/level/Level(853): pocketmine\entity\Entity->onUpdate(integer 10599)
[08:10:03] [Server thread/DEBUG]: #9 src/pocketmine/level/Level(786): pocketmine\level\Level->actuallyDoTick(integer 10599)
[08:10:03] [Server thread/DEBUG]: #10 src/pocketmine/Server(2443): pocketmine\level\Level->doTick(integer 10599)
[08:10:03] [Server thread/DEBUG]: #11 src/pocketmine/Server(2574): pocketmine\Server->checkTickUpdates(integer 10599, double 1577401803.5541)
[08:10:03] [Server thread/DEBUG]: #12 src/pocketmine/Server(2343): pocketmine\Server->tick()
[08:10:03] [Server thread/DEBUG]: #13 src/pocketmine/Server(2203): pocketmine\Server->tickProcessor()
[08:10:03] [Server thread/DEBUG]: #14 src/pocketmine/Server(1785): pocketmine\Server->start()
[08:10:03] [Server thread/DEBUG]: #15 src/pocketmine/PocketMine(272): pocketmine\Server->__construct(object BaseClassLoader, object pocketmine\utils\MainLogger, string[18] /minecraft/server/, string[26] /minecraft/server/plugins/)
[08:10:03] [Server thread/DEBUG]: #16 src/pocketmine/PocketMine(295): pocketmine\server()
[08:10:03] [Server thread/DEBUG]: #17 (1): require(string[64] phar:///minecraft/server/pmmp.phar/src/pocketmine/PocketMine.php)
[08:10:03] [Server thread/EMERGENCY]: 回復不可能なエラーが発生し、サーバーがクラッシュしました。クラッシュダンプを作成します
[08:10:03] [Server thread/EMERGENCY]: 「/minecraft/server/crashdumps/Fri_Dec_27-08.10.03-JST_2019.log」のファイルをクラッシュアーカイブにアップロードし、バグレポートページにリンクを提出してください。できる限り多くの情報を提供してください。
[08:10:03] [Server thread/CRITICAL]: TypeError: "substr() expects parameter 1 to be string, null given" (EXCEPTION) in "src/pocketmine/utils/Internet" at line 224
[08:10:03] [Server thread/DEBUG]: #0 src/pocketmine/utils/Internet(224): substr(NULL , integer 0, integer 0)
[08:10:03] [Server thread/DEBUG]: #1 src/pocketmine/utils/Internet(173): pocketmine\utils\Internet::simpleCurl(string[32] https://crash.pmmp.io/submit/api, integer 10, array[0], array[2])
[08:10:03] [Server thread/DEBUG]: #2 src/pocketmine/Server(2301): pocketmine\utils\Internet::postURL(string[32] https://crash.pmmp.io/submit/api, array[4])
[08:10:03] [Server thread/DEBUG]: #3 src/pocketmine/Server(2246): pocketmine\Server->crashDump()
[08:10:03] [Server thread/DEBUG]: #4 src/pocketmine/Server(1787): pocketmine\Server->exceptionHandler(object TypeError)
[08:10:03] [Server thread/DEBUG]: #5 src/pocketmine/PocketMine(272): pocketmine\Server->__construct(object BaseClassLoader, object pocketmine\utils\MainLogger, string[18] /minecraft/server/, string[26] /minecraft/server/plugins/)
[08:10:03] [Server thread/DEBUG]: #6 src/pocketmine/PocketMine(295): pocketmine\server()
[08:10:03] [Server thread/DEBUG]: #7 (1): require(string[64] phar:///minecraft/server/pmmp.phar/src/pocketmine/PocketMine.php)
[08:10:03] [Server thread/CRITICAL]: クラッシュダンプを作成できませんでした:substr() expects parameter 1 to be string, null given