When joining a world, with no plugins, but four old custom worlds, I get the following errors repeatedly, on every tick. Code: [12:06:09] [Server thread/CRITICAL]: TypeError: "Argument 8 passed to pocketmine\level\format\Chunk::__construct() must be of the type array, string given, called in C:\Users\Will Regan\Desktop\PocketMine-MP-master (3)\PocketMine-MP-master\src\pocketmine\level\format\io\region\McRegion.php on line 187" (EXCEPTION) in "/src/pocketmine/level/format/Chunk" at line 97 My world is very small, only taking up 4 mc region files. However, while flying around the map, I see a lot of auto-generated world. These bits also have missing chunks. What is happening?