JJC NBT FIX

JJC NBT Fix fixes a common NBT error

16.8K Downloads

forgeoptimization

Rent Server with this Mod

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About this Mod

no more nbt JJC NBT Fix fixes a common NBT error caused by JujutsuCraft.

This mod is mainly required on the client side and is recommended for anyone playing with JujutsuCraft. It can also be installed on the server side, which is optional but recommended for better stability in multiplayer environments.

The mod helps prevent issues caused by broken, invalid, or unexpected NBT data from JujutsuCraft entities, items, or player data. This can reduce errors, crashes, and other problems related to corrupted NBT dat

Available Versions

JJC NBT FIX 1.0.5release

MC 1.20.1forge

July 2, 2026

How to Install JJC NBT FIX on Your Server

Order Server

Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).

Set forge Loader

In the panel under "Egg", select the forge loader and matching Minecraft version (1.20.1).

Install Mod

Open the mod browser in the dashboard and search for "JJC NBT FIX". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.

Compatibility

Mod Loaders

forge

Minecraft Versions

1.20.1

Server-side

✓ Required

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

JJC NBT FIX server crashes on startup – what to do?

Most common cause: wrong forge version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.20.1). You can switch loaders with one click in the panel.

Is JJC NBT FIX compatible with forge?

JJC NBT FIX officially supports forge for Minecraft 1.20.1. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with JJC NBT FIX – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if JJC NBT FIX consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.