diff --git a/src/pocketmine/level/Level.php b/src/pocketmine/level/Level.php
index b627f88ef..9eb5b96c7 100644
--- a/src/pocketmine/level/Level.php
+++ b/src/pocketmine/level/Level.php
@@ -48,6 +48,8 @@ use pocketmine\level\biome\Biome;
 use pocketmine\level\format\Chunk;
 use pocketmine\level\format\ChunkException;
 use pocketmine\level\format\EmptySubChunk;
+use pocketmine\level\format\io\exception\CorruptedChunkException;
+use pocketmine\level\format\io\exception\UnsupportedChunkFormatException;
 use pocketmine\level\format\io\LevelProvider;
 use pocketmine\level\generator\Generator;
 use pocketmine\level\generator\GeneratorManager;
@@ -2652,10 +2654,9 @@ class Level implements ChunkManager, Metadatable{
 
 		try{
 			$chunk = $this->provider->loadChunk($x, $z);
-		}catch(\Exception $e){
+		}catch(CorruptedChunkException | UnsupportedChunkFormatException $e){
 			$logger = $this->server->getLogger();
-			$logger->critical("An error occurred while loading chunk x=$x z=$z: " . $e->getMessage());
-			$logger->logException($e);
+			$logger->critical("Failed to load chunk x=$x z=$z: " . $e->getMessage());
 		}
 
 		if($chunk === null and $create){
@@ -2736,23 +2737,17 @@ class Level implements ChunkManager, Metadatable{
 				return false;
 			}
 
-			try{
-				if($trySave and $this->getAutoSave() and $chunk->isGenerated()){
-					if($chunk->hasChanged() or count($chunk->getTiles()) > 0 or count($chunk->getSavableEntities()) > 0){
-						$this->provider->saveChunk($chunk);
-					}
+			if($trySave and $this->getAutoSave() and $chunk->isGenerated()){
+				if($chunk->hasChanged() or count($chunk->getTiles()) > 0 or count($chunk->getSavableEntities()) > 0){
+					$this->provider->saveChunk($chunk);
 				}
-
-				foreach($this->getChunkLoaders($x, $z) as $loader){
-					$loader->onChunkUnloaded($chunk);
-				}
-
-				$chunk->onUnload();
-			}catch(\Throwable $e){
-				$logger = $this->server->getLogger();
-				$logger->error($this->server->getLanguage()->translateString("pocketmine.level.chunkUnloadError", [$e->getMessage()]));
-				$logger->logException($e);
 			}
+
+			foreach($this->getChunkLoaders($x, $z) as $loader){
+				$loader->onChunkUnloaded($chunk);
+			}
+
+			$chunk->onUnload();
 		}
 
 		unset($this->chunks[$chunkHash]);
diff --git a/src/pocketmine/level/format/io/BaseLevelProvider.php b/src/pocketmine/level/format/io/BaseLevelProvider.php
index e74038d25..b59003264 100644
--- a/src/pocketmine/level/format/io/BaseLevelProvider.php
+++ b/src/pocketmine/level/format/io/BaseLevelProvider.php
@@ -24,6 +24,8 @@ declare(strict_types=1);
 namespace pocketmine\level\format\io;
 
 use pocketmine\level\format\Chunk;
+use pocketmine\level\format\io\exception\CorruptedChunkException;
+use pocketmine\level\format\io\exception\UnsupportedChunkFormatException;
 use pocketmine\level\LevelException;
 
 abstract class BaseLevelProvider implements LevelProvider{
@@ -54,6 +56,14 @@ abstract class BaseLevelProvider implements LevelProvider{
 		return $this->levelData;
 	}
 
+	/**
+	 * @param int $chunkX
+	 * @param int $chunkZ
+	 *
+	 * @return Chunk|null
+	 * @throws CorruptedChunkException
+	 * @throws UnsupportedChunkFormatException
+	 */
 	public function loadChunk(int $chunkX, int $chunkZ) : ?Chunk{
 		return $this->readChunk($chunkX, $chunkZ);
 	}
@@ -65,6 +75,14 @@ abstract class BaseLevelProvider implements LevelProvider{
 		$this->writeChunk($chunk);
 	}
 
+	/**
+	 * @param int $chunkX
+	 * @param int $chunkZ
+	 *
+	 * @return Chunk|null
+	 * @throws UnsupportedChunkFormatException
+	 * @throws CorruptedChunkException
+	 */
 	abstract protected function readChunk(int $chunkX, int $chunkZ) : ?Chunk;
 
 	abstract protected function writeChunk(Chunk $chunk) : void;
diff --git a/src/pocketmine/level/format/io/LevelProvider.php b/src/pocketmine/level/format/io/LevelProvider.php
index cb5838b01..975ea7143 100644
--- a/src/pocketmine/level/format/io/LevelProvider.php
+++ b/src/pocketmine/level/format/io/LevelProvider.php
@@ -24,6 +24,8 @@ declare(strict_types=1);
 namespace pocketmine\level\format\io;
 
 use pocketmine\level\format\Chunk;
+use pocketmine\level\format\io\exception\CorruptedChunkException;
+use pocketmine\level\format\io\exception\UnsupportedChunkFormatException;
 
 interface LevelProvider{
 
@@ -80,8 +82,8 @@ interface LevelProvider{
 	 *
 	 * @return null|Chunk
 	 *
-	 * @throws \Exception any of a range of exceptions that could be thrown while reading chunks. See individual
-	 * implementations for details.
+	 * @throws CorruptedChunkException
+	 * @throws UnsupportedChunkFormatException
 	 */
 	public function loadChunk(int $chunkX, int $chunkZ) : ?Chunk;
 
diff --git a/src/pocketmine/level/format/io/region/LegacyAnvilChunkTrait.php b/src/pocketmine/level/format/io/region/LegacyAnvilChunkTrait.php
index eca17c88c..759da6d9b 100644
--- a/src/pocketmine/level/format/io/region/LegacyAnvilChunkTrait.php
+++ b/src/pocketmine/level/format/io/region/LegacyAnvilChunkTrait.php
@@ -24,8 +24,8 @@ declare(strict_types=1);
 namespace pocketmine\level\format\io\region;
 
 use pocketmine\level\format\Chunk;
-use pocketmine\level\format\ChunkException;
 use pocketmine\level\format\io\ChunkUtils;
+use pocketmine\level\format\io\exception\CorruptedChunkException;
 use pocketmine\level\format\SubChunk;
 use pocketmine\nbt\BigEndianNBTStream;
 use pocketmine\nbt\NBT;
@@ -99,7 +99,7 @@ trait LegacyAnvilChunkTrait{
 		$nbt = new BigEndianNBTStream();
 		$chunk = $nbt->readCompressed($data);
 		if(!$chunk->hasTag("Level")){
-			throw new ChunkException("Invalid NBT format");
+			throw new CorruptedChunkException("'Level' key is missing from chunk NBT");
 		}
 
 		$chunk = $chunk->getCompoundTag("Level");
diff --git a/src/pocketmine/level/format/io/region/McRegion.php b/src/pocketmine/level/format/io/region/McRegion.php
index abae6c7f2..4a56dd809 100644
--- a/src/pocketmine/level/format/io/region/McRegion.php
+++ b/src/pocketmine/level/format/io/region/McRegion.php
@@ -24,8 +24,8 @@ declare(strict_types=1);
 namespace pocketmine\level\format\io\region;
 
 use pocketmine\level\format\Chunk;
-use pocketmine\level\format\ChunkException;
 use pocketmine\level\format\io\ChunkUtils;
+use pocketmine\level\format\io\exception\CorruptedChunkException;
 use pocketmine\level\format\SubChunk;
 use pocketmine\nbt\BigEndianNBTStream;
 use pocketmine\nbt\NBT;
@@ -98,12 +98,13 @@ class McRegion extends RegionLevelProvider{
 	 * @param string $data
 	 *
 	 * @return Chunk
+	 * @throws CorruptedChunkException
 	 */
 	protected function deserializeChunk(string $data) : Chunk{
 		$nbt = new BigEndianNBTStream();
 		$chunk = $nbt->readCompressed($data);
 		if(!$chunk->hasTag("Level")){
-			throw new ChunkException("Invalid NBT format");
+			throw new CorruptedChunkException("'Level' key is missing from chunk NBT");
 		}
 
 		$chunk = $chunk->getCompoundTag("Level");
diff --git a/src/pocketmine/level/format/io/region/RegionLevelProvider.php b/src/pocketmine/level/format/io/region/RegionLevelProvider.php
index 8e58ce2f5..8447a13d5 100644
--- a/src/pocketmine/level/format/io/region/RegionLevelProvider.php
+++ b/src/pocketmine/level/format/io/region/RegionLevelProvider.php
@@ -26,6 +26,7 @@ namespace pocketmine\level\format\io\region;
 use pocketmine\level\format\Chunk;
 use pocketmine\level\format\io\BaseLevelProvider;
 use pocketmine\level\format\io\data\JavaLevelData;
+use pocketmine\level\format\io\exception\CorruptedChunkException;
 use pocketmine\level\format\io\LevelData;
 use pocketmine\level\Level;
 
@@ -156,6 +157,12 @@ abstract class RegionLevelProvider extends BaseLevelProvider{
 
 	abstract protected function serializeChunk(Chunk $chunk) : string;
 
+	/**
+	 * @param string $data
+	 *
+	 * @return Chunk
+	 * @throws CorruptedChunkException
+	 */
 	abstract protected function deserializeChunk(string $data) : Chunk;
 
 	protected function readChunk(int $chunkX, int $chunkZ) : ?Chunk{