[FTB Monster] Map loading issue

[AliMente4]

Hello,
i played some days FTB Monster. And now i cant start anymore my map. If i create a new map i dont get a crash, but if i start the old map it crash with this message.

Spoiler: Crash report

---- Minecraft Crash Report ----
// There are four lights!

Time: 11/1/21 12:40 PM
Description: Exception in server tick loop

java.lang.RuntimeException: java.util.zip.ZipException: Not in GZIP format
at codechicken.enderstorage.api.EnderStorageManager.load(EnderStorageManager.java:157)
at codechicken.enderstorage.api.EnderStorageManager.<init>(EnderStorageManager.java:118)
at codechicken.enderstorage.api.EnderStorageManager.reloadManager(EnderStorageManager.java:195)
at codechicken.enderstorage.api.EnderStorageManager$EnderStorageSaveHandler.onWorldLoad(EnderStorageManager.java:41)
at net.minecraftforge.event.ASMEventHandler_185_EnderStorageSaveHandler_onWorldLoad_Load.invoke(.dynamic)
at net.minecraftforge.event.ASMEventHandler.invoke(ASMEventHandler.java:39)
at net.minecraftforge.event.EventBus.post(EventBus.java:108)
at net.minecraft.server.integrated.IntegratedServer.func_71247_a(IntegratedServer.java:85)
at net.minecraft.server.integrated.IntegratedServer.func_71197_b(IntegratedServer.java:107)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:445)
at net.minecraft.server.ThreadMinecraftServer.run(SourceFile:583)
Caused by: java.util.zip.ZipException: Not in GZIP format
at java.util.zip.GZIPInputStream.readHeader(GZIPInputStream.java:165)
at java.util.zip.GZIPInputStream.<init>(GZIPInputStream.java:79)
at java.util.zip.GZIPInputStream.<init>(GZIPInputStream.java:91)
at net.minecraft.nbt.CompressedStreamTools.func_74796_a(CompressedStreamTools.java:28)
at codechicken.enderstorage.api.EnderStorageManager.load(EnderStorageManager.java:144)
... 10 more


A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- System Details --
Details:
Minecraft Version: 1.6.4
Operating System: Windows 10 (amd64) version 10.0
Java Version: 1.8.0_51, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 3759342704 bytes (3585 MB) / 4558684160 bytes (4347 MB) up to 11453595648 bytes (10923 MB)
JVM Flags: 2 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx12288M
AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
Suspicious classes: FML and Forge are installed
IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0

 

[grandrolf]

Do a reinstall of the pack, also reduce allocated ram - 12gb is way too much and will cause issues.

For a 1.6.4 pack, 2-4gb is enough
For newer packs 4-6gb is enough (some rare occasions 8gb is needed)