Scoreboards crash error

[nebsonc]

When I tried creating a scoreboard the server crashed with this error:

[22:32:31] [Server thread/CRITICAL]: Error: "Undefined property: pocketmine\network\mcpe\protocol\RemoveEntityPacket::$entityUniqueId" (EXCEPTION) in "src/pocketmine/network/mcpe/protocol/DataPacket" at line 164 [22:32:31] [Server thread/DEBUG]: #0 plugins/SkyWars-master/src/muqsit/skywars/utils/FloatingScoreboard(91): pocketmine\network\mcpe\protocol\DataPacket->__set(string[14] entityUniqueId, integer 3) [22:32:31] [Server thread/DEBUG]: #1 plugins/SkyWars-master/src/muqsit/skywars/handler/ScoreboardHandler(71): muqsit\skywars\utils\FloatingScoreboard->__construct(object pocketmine\scheduler\TaskScheduler, object pocketmine\level\Position, object muqsit\skywars\database\JSONDatabase) [22:32:31] [Server thread/DEBUG]: #2 plugins/SkyWars-master/src/muqsit/skywars/SkyWarsCommand(251): muqsit\skywars\handler\ScoreboardHandler->add(object pocketmine\Player) [22:32:31] [Server thread/DEBUG]: #3 src/pocketmine/command/PluginCommand(58): muqsit\skywars\SkyWarsCommand->onCommand(object pocketmine\Player, object muqsit\skywars\SkyWarsCommand, string[2] sw, array[1]) [22:32:31] [Server thread/DEBUG]: #4 src/pocketmine/command/SimpleCommandMap(270): pocketmine\command\PluginCommand->execute(object pocketmine\Player, string[2] sw, array[1]) [22:32:31] [Server thread/DEBUG]: #5 src/pocketmine/Server(2029): pocketmine\command\SimpleCommandMap->dispatch(object pocketmine\Player, string[16] sw addscoreboard) [22:32:31] [Server thread/DEBUG]: #6 src/pocketmine/Player(2231): pocketmine\Server->dispatchCommand(object pocketmine\Player, string[16] sw addscoreboard) [22:32:31] [Server thread/DEBUG]: #7 src/pocketmine/network/mcpe/PlayerNetworkSessionAdapter(240): pocketmine\Player->chat(string[17] /sw addscoreboard) [22:32:31] [Server thread/DEBUG]: #8 src/pocketmine/network/mcpe/protocol/CommandRequestPacket(54): pocketmine\network\mcpe\PlayerNetworkSessionAdapter->handleCommandRequest(object pocketmine\network\mcpe\protocol\CommandRequestPacket) [22:32:31] [Server thread/DEBUG]: #9 src/pocketmine/network/mcpe/PlayerNetworkSessionAdapter(110): pocketmine\network\mcpe\protocol\CommandRequestPacket->handle(object pocketmine\network\mcpe\PlayerNetworkSessionAdapter) [22:32:31] [Server thread/DEBUG]: #10 src/pocketmine/network/mcpe/protocol/BatchPacket(123): pocketmine\network\mcpe\PlayerNetworkSessionAdapter->handleDataPacket(object pocketmine\network\mcpe\protocol\CommandRequestPacket) [22:32:31] [Server thread/DEBUG]: #11 src/pocketmine/network/mcpe/PlayerNetworkSessionAdapter(110): pocketmine\network\mcpe\protocol\BatchPacket->handle(object pocketmine\network\mcpe\PlayerNetworkSessionAdapter) [22:32:31] [Server thread/DEBUG]: #12 src/pocketmine/Player(3124): pocketmine\network\mcpe\PlayerNetworkSessionAdapter->handleDataPacket(object pocketmine\network\mcpe\protocol\BatchPacket) [22:32:31] [Server thread/DEBUG]: #13 src/pocketmine/network/mcpe/RakLibInterface(169): pocketmine\Player->handleDataPacket(object pocketmine\network\mcpe\protocol\BatchPacket) [22:32:31] [Server thread/DEBUG]: #14 vendor/pocketmine/raklib/src/server/ServerHandler(99): pocketmine\network\mcpe\RakLibInterface->handleEncapsulated(string[21] 142.105.165.103 65497, object raklib\protocol\EncapsulatedPacket, integer 0) [22:32:31] [Server thread/DEBUG]: #15 src/pocketmine/network/mcpe/RakLibInterface(109): raklib\server\ServerHandler->handlePacket() [22:32:31] [Server thread/DEBUG]: #16 src/pocketmine/network/mcpe/RakLibInterface(99): pocketmine\network\mcpe\RakLibInterface->process() [22:32:31] [Server thread/DEBUG]: #17 vendor/pocketmine/snooze/src/SleeperHandler(123): pocketmine\network\mcpe\RakLibInterface->pocketmine\network\mcpe{closure}() [22:32:31] [Server thread/DEBUG]: #18 vendor/pocketmine/snooze/src/SleeperHandler(85): pocketmine\snooze\SleeperHandler->processNotifications() [22:32:31] [Server thread/DEBUG]: #19 src/pocketmine/Server(2348): pocketmine\snooze\SleeperHandler->sleepUntil(double 1563489151.3505) [22:32:31] [Server thread/DEBUG]: #20 src/pocketmine/Server(2205): pocketmine\Server->tickProcessor() [22:32:31] [Server thread/DEBUG]: #21 src/pocketmine/Server(1784): pocketmine\Server->start() [22:32:31] [Server thread/DEBUG]: #22 src/pocketmine/PocketMine(274): pocketmine\Server->__construct(object BaseClassLoader, object pocketmine\utils\MainLogger, string[62] /var/lib/pufferd/servers/917dd304-2181-41f1-8afc-a12f8484f004/, string[70] /var/lib/pufferd/servers/917dd304-2181-41f1-8afc-a12f8484f004/plugins/) [22:32:31] [Server thread/DEBUG]: #23 (1): require(string[117] phar:///var/lib/pufferd/servers/917dd304-2181-41f1-8afc-a12f8484f004/PocketMine-)