org.iq80.leveldb.shaded.guava.util.concurrent.UncheckedExecutionException: java.lang.IllegalArgumentException: Unknown persistentId 4
	at org.iq80.leveldb.shaded.guava.cache.LocalCache$Segment.get(LocalCache.java:2203)
	at org.iq80.leveldb.shaded.guava.cache.LocalCache.get(LocalCache.java:3937)
	at org.iq80.leveldb.shaded.guava.cache.LocalCache.getOrLoad(LocalCache.java:3941)
	at org.iq80.leveldb.shaded.guava.cache.LocalCache$LocalLoadingCache.get(LocalCache.java:4824)
	at org.iq80.leveldb.impl.TableCache.getTable(TableCache.java:91)
	at org.iq80.leveldb.impl.TableCache.newIterator(TableCache.java:79)
	at org.iq80.leveldb.impl.TableCache.newIterator(TableCache.java:74)
	at org.iq80.leveldb.util.LevelIterator.openNextFile(LevelIterator.java:137)
	at org.iq80.leveldb.util.LevelIterator.getNextElement(LevelIterator.java:113)
	at org.iq80.leveldb.util.AbstractSeekingIterator.hasNext(AbstractSeekingIterator.java:48)
	at org.iq80.leveldb.util.DbIterator.resetPriorityQueue(DbIterator.java:160)
	at org.iq80.leveldb.util.DbIterator.<init>(DbIterator.java:75)
	at org.iq80.leveldb.impl.DbImpl.internalIterator(DbImpl.java:781)
	at org.iq80.leveldb.impl.DbImpl.iterator(DbImpl.java:747)
	at org.iq80.leveldb.impl.DbImpl.iterator(DbImpl.java:738)
	at org.iq80.leveldb.impl.DbImpl.iterator(DbImpl.java:84)
	at java.lang.Iterable.forEach(Unknown Source)
	at com.boydti.fawe.nukkit.core.converter.LevelDBToMCAFile.accept(LevelDBToMCAFile.java:106)
	at com.boydti.fawe.nukkit.core.converter.LevelDBToMCAFile.accept(LevelDBToMCAFile.java:43)
	at com.boydti.fawe.nukkit.core.converter.ConverterFrame$7.run(ConverterFrame.java:459)
	at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.IllegalArgumentException: Unknown persistentId 4
	at org.iq80.leveldb.CompressionType.getCompressionTypeByPersistentId(CompressionType.java:34)
	at org.iq80.leveldb.table.BlockTrailer.readBlockTrailer(BlockTrailer.java:96)
	at org.iq80.leveldb.table.FileChannelTable.readBlock(FileChannelTable.java:58)
	at org.iq80.leveldb.table.Table.<init>(Table.java:61)
	at org.iq80.leveldb.table.FileChannelTable.<init>(FileChannelTable.java:39)
	at org.iq80.leveldb.impl.TableCache$TableAndFile.<init>(TableCache.java:130)
	at org.iq80.leveldb.impl.TableCache$TableAndFile.<init>(TableCache.java:114)
	at org.iq80.leveldb.impl.TableCache$1.load(TableCache.java:67)
	at org.iq80.leveldb.impl.TableCache$1.load(TableCache.java:62)
	at org.iq80.leveldb.shaded.guava.cache.LocalCache$LoadingValueReference.loadFuture(LocalCache.java:3527)
	at org.iq80.leveldb.shaded.guava.cache.LocalCache$Segment.loadSync(LocalCache.java:2319)
	at org.iq80.leveldb.shaded.guava.cache.LocalCache$Segment.lockedGetOrLoad(LocalCache.java:2282)
	at org.iq80.leveldb.shaded.guava.cache.LocalCache$Segment.get(LocalCache.java:2197)
	... 20 more