undo crash

[rjworks]

[21:06:51] [Server thread/CRITICAL]: TypeError: "Return value of czechpmdevs\buildertools\Clipboard::getLastStep() must be an instance of czechpmdevs\buildertools\editors\object\EditorStep or null, instance of czechpmdevs\buildertoo
ls\editors\blockstorage\ClipboardData returned" (EXCEPTION) in "plugins/BuilderTools_dev-76.phar/src/czechpmdevs/buildertools/Clipboard" at line 68
[21:06:51] [Server thread/DEBUG]: #0 plugins/BuilderTools_dev-76.phar/src/czechpmdevs/buildertools/commands/UndoCommand(57): czechpmdevs\buildertools\Clipboard->getLastStep()
[21:06:51] [Server thread/DEBUG]: #1 src/pocketmine/command/SimpleCommandMap(248): czechpmdevs\buildertools\commands\UndoCommand->execute(object pocketmine\Player, string[5] /undo, array[0])
[21:06:51] [Server thread/DEBUG]: #2 src/pocketmine/Server(1811): pocketmine\command\SimpleCommandMap->dispatch(object pocketmine\Player, string[5] /undo)
[21:06:51] [Server thread/DEBUG]: #3 src/pocketmine/Player(2300): pocketmine\Server->dispatchCommand(object pocketmine\Player, string[5] /undo)
[21:06:51] [Server thread/DEBUG]: #4 src/pocketmine/network/mcpe/PlayerNetworkSessionAdapter(244): pocketmine\Player->chat(string[6] //undo)
[21:06:51] [Server thread/DEBUG]: #5 src/pocketmine/network/mcpe/protocol/CommandRequestPacket(54): pocketmine\network\mcpe\PlayerNetworkSessionAdapter->handleCommandRequest(object pocketmine\network\mcpe\protocol\CommandRequestPack
et)
[21:06:51] [Server thread/DEBUG]: #6 src/pocketmine/network/mcpe/PlayerNetworkSessionAdapter(110): pocketmine\network\mcpe\protocol\CommandRequestPacket->handle(object pocketmine\network\mcpe\PlayerNetworkSessionAdapter)
[21:06:51] [Server thread/DEBUG]: #7 src/pocketmine/network/mcpe/protocol/BatchPacket(127): pocketmine\network\mcpe\PlayerNetworkSessionAdapter->handleDataPacket(object pocketmine\network\mcpe\protocol\CommandRequestPacket)
[21:06:51] [Server thread/DEBUG]: #8 src/pocketmine/network/mcpe/PlayerNetworkSessionAdapter(110): pocketmine\network\mcpe\protocol\BatchPacket->handle(object pocketmine\network\mcpe\PlayerNetworkSessionAdapter)
[21:06:51] [Server thread/DEBUG]: #9 src/pocketmine/Player(3235): pocketmine\network\mcpe\PlayerNetworkSessionAdapter->handleDataPacket(object pocketmine\network\mcpe\protocol\BatchPacket)
[21:06:51] [Server thread/DEBUG]: #10 src/pocketmine/network/mcpe/RakLibInterface(169): pocketmine\Player->handleDataPacket(object pocketmine\network\mcpe\protocol\BatchPacket)
[21:06:51] [Server thread/DEBUG]: #11 vendor/pocketmine/raklib/src/server/ServerHandler(99): pocketmine\network\mcpe\RakLibInterface->handleEncapsulated(string[15] 127.0.0.1 60385, object raklib\protocol\EncapsulatedPacket, integer
0)
[21:06:51] [Server thread/DEBUG]: #12 src/pocketmine/network/mcpe/RakLibInterface(109): raklib\server\ServerHandler->handlePacket()
[21:06:51] [Server thread/DEBUG]: #13 src/pocketmine/network/mcpe/RakLibInterface(99): pocketmine\network\mcpe\RakLibInterface->process()
[21:06:51] [Server thread/DEBUG]: #14 vendor/pocketmine/snooze/src/SleeperHandler(123): pocketmine\network\mcpe\RakLibInterface->pocketmine\network\mcpe{closure}()
[21:06:51] [Server thread/DEBUG]: #15 vendor/pocketmine/snooze/src/SleeperHandler(85): pocketmine\snooze\SleeperHandler->processNotifications()
[21:06:51] [Server thread/DEBUG]: #16 src/pocketmine/Server(2157): pocketmine\snooze\SleeperHandler->sleepUntil(double 1594001212.0199)
[21:06:51] [Server thread/DEBUG]: #17 src/pocketmine/Server(1994): pocketmine\Server->tickProcessor()
[21:06:51] [Server thread/DEBUG]: #18 src/pocketmine/Server(1588): pocketmine\Server->start()
[21:06:51] [Server thread/DEBUG]: #19 src/pocketmine/PocketMine(273): pocketmine\Server->__construct(object BaseClassLoader, object pocketmine\utils\MainLogger, string[31] D:\PC\Desktop\mc\PocketMine-MP, string[39] D:\PC\Desktop\mc
\PocketMine-MP\plugins)
[21:06:51] [Server thread/DEBUG]: #20 src/pocketmine/PocketMine(304): pocketmine\server()

[GamakCZ]

Use released version