Banned on GitHub so posting here. I get this following error using PMMP and the build https://jenkins.pmmp.io/job/PocketMine-MP/111/ This hasn't happened before. Code: Warning: zlib_decode(): data error in C:\Users\Administrator\Desktop\Server\MinecraftPE\WolvesFortressCSphp7\src\pocketmine\nbt\NBT.php on line 466 Notice: Undefined property: pocketmine\nbt\tag\EndTag::$Data in C:\Users\Administrator\Desktop\Server\MinecraftPE\WolvesFortressCSphp7\src\pocketmine\level\format\generic\BaseLevelProvider.php on line 33 [14:51:27] [Server thread/ERROR]: Konnte Welt "nether" nicht laden: Invalid level.dat [14:51:27] [Server thread/CRITICAL]: pocketmine\utils\LevelException: "Invalid level.dat" (EXCEPTION) in "/src/pocketmine/level/format/generic/BaseLevelProvider" at line 36 [14:51:27] [Server thread/DEBUG]: #0 /src/pocketmine/Server(1077): pocketmine\level\Level->__construct(pocketmine\Server object, string nether, string C:\Users\Administrator\Desktop\Server\MinecraftPE\WolvesFortressCSphp7\worlds/nether/, string pocketmine\level\format\mcregion\McRegion) [14:51:27] [Server thread/DEBUG]: #1 /src/pocketmine/Server(1707): pocketmine\Server->loadLevel(string nether) [14:51:27] [Server thread/DEBUG]: #2 /src/pocketmine/PocketMine(450): pocketmine\Server->__construct(pocketmine\CompatibleClassLoader object, pocketmine\utils\MainLogger object, string C:\Users\Administrator\Desktop\Server\MinecraftPE\WolvesFortressCSphp7\, string C:\Users\Administrator\Desktop\Server\MinecraftPE\WolvesFortressCSphp7\, string C:\Users\Administrator\Desktop\Server\MinecraftPE\WolvesFortressCSphp7\plugins\)