Internal Server Error

[ErosionYT]

When spawning a bat ther server will crash and not allow you to log back on.
[10:31:35] [Server thread/CRITICAL]: Error: "Call to undefined method pocketmine\item\ItemBlock::write()" (EXCEPTION) in "pmsrc/src/pocketmine/network/mcpe/protocol/AddPlayerPacket" at line 132 [10:31:35] [Server thread/CRITICAL]: #0 pmsrc/src/pocketmine/network/mcpe/protocol/DataPacket(127): pocketmine\network\mcpe\protocol\AddPlayerPacket->encodePayload() [10:31:35] [Server thread/CRITICAL]: #1 pmsrc/src/pocketmine/network/mcpe/RakLibInterface(244): pocketmine\network\mcpe\protocol\DataPacket->encode() [10:31:35] [Server thread/CRITICAL]: #2 pmsrc/src/pocketmine/Player(3369): pocketmine\network\mcpe\RakLibInterface->putPacket(object pocketmine\Player, object pocketmine\network\mcpe\protocol\AddPlayerPacket, boolean , boolean ) [10:31:35] [Server thread/CRITICAL]: #3 pmsrc/src/pocketmine/Player(3386): pocketmine\Player->sendDataPacket(object pocketmine\network\mcpe\protocol\AddPlayerPacket, boolean , boolean ) [10:31:35] [Server thread/CRITICAL]: #4 plugins/Slapper/src/slapper/entities/SlapperEntity(64): pocketmine\Player->dataPacket(object pocketmine\network\mcpe\protocol\AddPlayerPacket) [10:31:35] [Server thread/CRITICAL]: #5 pmsrc/src/pocketmine/entity/Entity(1961): slapper\entities\SlapperEntity->sendSpawnPacket(object pocketmine\Player) [10:31:35] [Server thread/CRITICAL]: #6 pmsrc/src/pocketmine/Player(1108): pocketmine\entity\Entity->spawnTo(object pocketmine\Player) [10:31:35] [Server thread/CRITICAL]: #7 pmsrc/src/pocketmine/network/mcpe/PlayerNetworkSessionAdapter(310): pocketmine\Player->doFirstSpawn() [10:31:35] [Server thread/CRITICAL]: #8 pmsrc/src/pocketmine/network/mcpe/protocol/SetLocalPlayerAsInitializedPacket(45): pocketmine\network\mcpe\PlayerNetworkSessionAdapter->handleSetLocalPlayerAsInitialized(object pocketmine\network\mcpe\protocol\SetLocalPlayerAsInitializedPacket) [10:31:35] [Server thread/CRITICAL]: #9 pmsrc/src/pocketmine/network/mcpe/PlayerNetworkSessionAdapter(109): pocketmine\network\mcpe\protocol\SetLocalPlayerAsInitializedPacket->handle(object pocketmine\network\mcpe\PlayerNetworkSessionAdapter) [10:31:35] [Server thread/CRITICAL]: #10 pmsrc/src/pocketmine/network/mcpe/protocol/BatchPacket(130): pocketmine\network\mcpe\PlayerNetworkSessionAdapter->handleDataPacket(object pocketmine\network\mcpe\protocol\SetLocalPlayerAsInitializedPacket) [10:31:35] [Server thread/CRITICAL]: #11 pmsrc/src/pocketmine/network/mcpe/PlayerNetworkSessionAdapter(109): pocketmine\network\mcpe\protocol\BatchPacket->handle(object pocketmine\network\mcpe\PlayerNetworkSessionAdapter) [10:31:35] [Server thread/CRITICAL]: #12 pmsrc/src/pocketmine/Player(3321): pocketmine\network\mcpe\PlayerNetworkSessionAdapter->handleDataPacket(object pocketmine\network\mcpe\protocol\BatchPacket) [10:31:35] [Server thread/CRITICAL]: #13 pmsrc/src/pocketmine/network/mcpe/RakLibInterface(169): pocketmine\Player->handleDataPacket(object pocketmine\network\mcpe\protocol\BatchPacket) [10:31:35] [Server thread/CRITICAL]: #14 pmsrc/vendor/pocketmine/raklib/src/server/ServerHandler(95): pocketmine\network\mcpe\RakLibInterface->handleEncapsulated(string[20] 156.146.57.133 56237, object raklib\protocol\EncapsulatedPacket, integer 0) [10:31:35] [Server thread/CRITICAL]: #15 pmsrc/src/pocketmine/network/mcpe/RakLibInterface(109): raklib\server\ServerHandler->handlePacket() [10:31:35] [Server thread/CRITICAL]: #16 pmsrc/src/pocketmine/network/mcpe/RakLibInterface(99): pocketmine\network\mcpe\RakLibInterface->process() [10:31:35] [Server thread/CRITICAL]: #17 pmsrc/vendor/pocketmine/snooze/src/SleeperHandler(113): pocketmine\network\mcpe\RakLibInterface->pocketmine\network\mcpe\{closure}() [10:31:35] [Server thread/CRITICAL]: #18 pmsrc/vendor/pocketmine/snooze/src/SleeperHandler(75): pocketmine\snooze\SleeperHandler->processNotifications() [10:31:35] [Server thread/CRITICAL]: #19 pmsrc/src/pocketmine/Server(2155): pocketmine\snooze\SleeperHandler->sleepUntil(double 1630924295.5772) [10:31:35] [Server thread/CRITICAL]: #20 pmsrc/src/pocketmine/Server(1992): pocketmine\Server->tickProcessor() [10:31:35] [Server thread/CRITICAL]: #21 pmsrc/src/pocketmine/Server(1586): pocketmine\Server->start() [10:31:35] [Server thread/CRITICAL]: #22 pmsrc/src/pocketmine/PocketMine(314): pocketmine\Server->__construct(object BaseClassLoader, object pocketmine\utils\MainLogger, string[16] /home/container/, string[24] /home/container/plugins/) [10:31:35] [Server thread/CRITICAL]: #23 pmsrc/src/pocketmine/PocketMine(344): pocketmine\server() [10:31:35] [Server thread/CRITICAL]: #24 pmsrc(11): require(string[71] phar:///home/container/PocketMine-MP.phar/src/pocketmine/PocketMine.php)