diff --git a/src/pocketmine/level/format/leveldb/Chunk.php b/src/pocketmine/level/format/leveldb/Chunk.php
index c77a5f681..b5c1cd8c1 100644
--- a/src/pocketmine/level/format/leveldb/Chunk.php
+++ b/src/pocketmine/level/format/leveldb/Chunk.php
@@ -242,7 +242,7 @@ class Chunk extends BaseFullChunk{
 				$nbt = new NBT(NBT::LITTLE_ENDIAN);
 
 				$entityData = $provider->getDatabase()->get(substr($data, 0, 8) . "\x32");
-				if($entityData !== false){
+				if($entityData !== false and strlen($entityData) > 0){
 					$nbt->read($entityData);
 					$entities = $nbt->getData();
 					if(!is_array($entities)){
@@ -250,7 +250,7 @@ class Chunk extends BaseFullChunk{
 					}
 				}
 				$tileData = $provider->getDatabase()->get(substr($data, 0, 8) . "\x31");
-				if($tileData !== false){
+				if($tileData !== false and strlen($tileData) > 0){
 					$nbt->read($tileData);
 					$tiles = $nbt->getData();
 					if(!is_array($tiles)){
@@ -268,6 +268,7 @@ class Chunk extends BaseFullChunk{
 			}
 			return $chunk;
 		}catch(\Exception $e){
+			echo $e;
 			return null;
 		}
 	}
@@ -283,7 +284,8 @@ class Chunk extends BaseFullChunk{
 			foreach($this->getEntities() as $entity){
 				if(!($entity instanceof Player) and !$entity->closed){
 					$entity->saveNBT();
-					$entities[] = $nbt->write($entity->namedtag);
+					$nbt->setData($entity->namedtag);
+					$entities[] = $nbt->write();
 				}
 			}
 
@@ -297,7 +299,8 @@ class Chunk extends BaseFullChunk{
 			$tiles = [];
 			foreach($this->getTiles() as $tile){
 				$tile->saveNBT();
-				$tiles[] = $nbt->write($tile->namedtag);
+				$nbt->setData($tile->namedtag);
+				$tiles[] = $nbt->write();
 			}
 
 			if(count($tiles) > 0){
diff --git a/src/pocketmine/level/format/leveldb/LevelDB.php b/src/pocketmine/level/format/leveldb/LevelDB.php
index d4f74cd1a..a8bc803a8 100644
--- a/src/pocketmine/level/format/leveldb/LevelDB.php
+++ b/src/pocketmine/level/format/leveldb/LevelDB.php
@@ -235,7 +235,8 @@ class LevelDB extends BaseLevelProvider{
 
 	private function writeChunk(Chunk $chunk){
 		$binary = $chunk->toBinary(true);
-		$this->db->put($index = LevelDB::chunkIndex($chunk->getX(), $chunk->getZ()) . "\x30", substr($binary, 8, -1));
+		$index = LevelDB::chunkIndex($chunk->getX(), $chunk->getZ());
+		$this->db->put($index . "\x30", substr($binary, 8, -1));
 		$this->db->put($index . "f", substr($binary, -1));
 		$this->db->put($index . "v", "\x02");
 	}
@@ -311,7 +312,7 @@ class LevelDB extends BaseLevelProvider{
 	}
 
 	private function chunkExists($chunkX, $chunkZ){
-		return $this->db->get(LevelDB::chunkIndex($chunkX, $chunkZ) . "\x76") !== false;
+		return $this->db->get(LevelDB::chunkIndex($chunkX, $chunkZ) . "v") !== false;
 	}
 
 	public function isChunkGenerated($chunkX, $chunkZ){