Error

[shdudwns]

[00:36:28] [Server thread/CRITICAL]: 레벨 "island"의 틱을 처리하지 못했습니다: Call to undefined method pocketmine\entity\Item::removeEffect()
[00:36:28] [Server thread/CRITICAL]: Error: "Call to undefined method pocketmine\entity\Item::removeEffect()" (EXCEPTION) in "TeaSpoon-master/src/CortexPE/tile/Beacon" at line 183
[00:36:28] [Server thread/DEBUG]: #0 TeaSpoon-master/src/CortexPE/tile/Beacon(169): CortexPE\tile\Beacon->applyEffects(CortexPE\tile\Beacon object)
[00:36:28] [Server thread/DEBUG]: #1 /root/sss/src/pocketmine/level/Level(736): CortexPE\tile\Beacon->onUpdate()
[00:36:28] [Server thread/DEBUG]: #2 /root/sss/src/pocketmine/Server(2374): pocketmine\level\Level->doTick(integer 3018)
[00:36:28] [Server thread/DEBUG]: #3 /root/sss/src/pocketmine/Server(2527): pocketmine\Server->checkTickUpdates(integer 3018, double 1511451388.0285)
[00:36:28] [Server thread/DEBUG]: #4 /root/sss/src/pocketmine/Server(2271): pocketmine\Server->tick()
[00:36:28] [Server thread/DEBUG]: #5 /root/sss/src/pocketmine/Server(2146): pocketmine\Server->tickProcessor()
[00:36:28] [Server thread/DEBUG]: #6 /root/sss/src/pocketmine/Server(1734): pocketmine\Server->start()
[00:36:28] [Server thread/DEBUG]: #7 /root/sss/src/pocketmine/PocketMine(552): pocketmine\Server->__construct(BaseClassLoader object, pocketmine\utils\MainLogger object, string ./, string /root/sss/, string /root/sss/plugins/)