/wild does not work!!! Debug after /wild

[servantthought]

11.06 19:55:48 [Server] Server thread/CRITICAL Unhandled exception executing command 'wild' in wild: Call to undefined method pocketmine\level\Level::generateChunk() 11.06 19:55:48 [Server] Server thread/CRITICAL Error: "Call to undefined method pocketmine\level\Level::generateChunk()" (EXCEPTION) in "essentialsTP-master/src/essentialsTP/essentialsTP" at line 1052 11.06 19:55:48 [Server] Server thread/DEBUG #0 src/pocketmine/command/PluginCommand(58): essentialsTP\essentialsTP->onCommand(pocketmine\Player object, pocketmine\command\PluginCommand object, string wild, array Array()) 11.06 19:55:48 [Server] Server thread/DEBUG #1 src/pocketmine/command/SimpleCommandMap(258): pocketmine\command\PluginCommand->execute(pocketmine\Player object, string wild, array Array()) 11.06 19:55:48 [Server] Server thread/DEBUG #2 src/pocketmine/Server(1978): pocketmine\command\SimpleCommandMap->dispatch(pocketmine\Player object, string wild) 11.06 19:55:48 [Server] Server thread/DEBUG #3 src/pocketmine/Player(2191): pocketmine\Server->dispatchCommand(pocketmine\Player object, string wild) 11.06 19:55:48 [Server] Server thread/DEBUG #4 src/pocketmine/network/mcpe/PlayerNetworkSessionAdapter(222): pocketmine\Player->chat(string /wild) 11.06 19:55:48 [Server] Server thread/DEBUG #5 src/pocketmine/network/mcpe/protocol/CommandRequestPacket(54): pocketmine\network\mcpe\PlayerNetworkSessionAdapter->handleCommandRequest(pocketmine\network\mcpe\protocol\CommandRequestPacket object) 11.06 19:55:48 [Server] Server thread/DEBUG #6 src/pocketmine/network/mcpe/PlayerNetworkSessionAdapter(92): pocketmine\network\mcpe\protocol\CommandRequestPacket->handle(pocketmine\network\mcpe\PlayerNetworkSessionAdapter object) 11.06 19:55:48 [Server] Server thread/DEBUG #7 src/pocketmine/network/mcpe/protocol/BatchPacket(114): pocketmine\network\mcpe\PlayerNetworkSessionAdapter->handleDataPacket(pocketmine\network\mcpe\protocol\CommandRequestPacket object) 11.06 19:55:48 [Server] Server thread/DEBUG #8 src/pocketmine/network/mcpe/PlayerNetworkSessionAdapter(92): pocketmine\network\mcpe\protocol\BatchPacket->handle(pocketmine\network\mcpe\PlayerNetworkSessionAdapter object) 11.06 19:55:48 [Server] Server thread/DEBUG #9 src/pocketmine/Player(3033): pocketmine\network\mcpe\PlayerNetworkSessionAdapter->handleDataPacket(pocketmine\network\mcpe\protocol\BatchPacket object) 11.06 19:55:48 [Server] Server thread/DEBUG #10 src/pocketmine/network/mcpe/RakLibInterface(158): pocketmine\Player->handleDataPacket(pocketmine\network\mcpe\protocol\BatchPacket object) 11.06 19:55:48 [Server] Server thread/DEBUG #11 vendor/pocketmine/raklib/server/ServerHandler(98): pocketmine\network\mcpe\RakLibInterface->handleEncapsulated(string 174.225.4.190 3307, raklib\protocol\EncapsulatedPacket object, integer 0) 11.06 19:55:48 [Server] Server thread/DEBUG #12 src/pocketmine/network/mcpe/RakLibInterface(103): raklib\server\ServerHandler->handlePacket() 11.06 19:55:48 [Server] Server thread/DEBUG #13 src/pocketmine/network/Network(94): pocketmine\network\mcpe\RakLibInterface->process() 11.06 19:55:48 [Server] Server thread/DEBUG #14 src/pocketmine/network/mcpe/RakLibInterface(80): pocketmine\network\Network->processInterface(pocketmine\network\mcpe\RakLibInterface object) 11.06 19:55:48 [Server] Server thread/DEBUG #15 vendor/pocketmine/snooze/src/SleeperHandler(113): pocketmine\network\mcpe\RakLibInterface->pocketmine\network\mcpe{closure}() 11.06 19:55:48 [Server] Server thread/DEBUG #16 vendor/pocketmine/snooze/src/SleeperHandler(82): pocketmine\snooze\SleeperHandler->processNotifications() 11.06 19:55:48 [Server] Server thread/DEBUG #17 src/pocketmine/Server(2279): pocketmine\snooze\SleeperHandler->sleepUntil(double 1528746948.6473) 11.06 19:55:48 [Server] Server thread/DEBUG #18 src/pocketmine/Server(2150): pocketmine\Server->tickProcessor() 11.06 19:55:48 [Server] Server thread/DEBUG #19 src/pocketmine/Server(1733): pocketmine\Server->start() 11.06 19:55:48 [Server] Server thread/DEBUG #20 src/pocketmine/PocketMine(290): pocketmine\Server->__construct(BaseClassLoader object, pocketmine\utils\MainLogger object, string /, string /plugins/) 11.06 19:55:48 [Server] Server thread/DEBUG #21 /pmmp_1079_1.4.0.phar(1): require(string phar:///pmmp_1079_1.4.0.phar/src/pocketmine/PocketMine.php