How to Fix a Valhelsia 6 Server That Keeps Crashing
Valhelsia 6 covers tech, magic and exploration all at once on Forge 1.20.1, and most reported crashes trace back to Forge build mismatches, Java bitness, or RAM rather than a mystery conflict between its combined mod categories.
See the Valhelsia 6 pack page for boot-tested RAM data before you chase anything else.
1. Wrong Forge build version
Mods are built for one specific Forge build on one Minecraft version — running the wrong Forge build, even a close one, causes load failures and crashes. If the pack's changelog mentions a Forge update, your server needs to match the exact build it specifies, not just stay on 1.20.1 generally.
2. 32-bit Java
All Valhelsia packs require 64-bit Java specifically — this is a known requirement across the whole pack family. A 32-bit JVM is a straightforward cause of startup failures that's easy to overlook if your environment's default Java isn't what you expect.
3. Erroring entities or tile entities
Forge has a built-in configuration option to remove erroring entities and tile entities automatically instead of crashing the server when one is encountered.
If you're hitting a specific, hard-to-diagnose crash tied to an entity, enabling this setting is a practical safety net while you track down the underlying cause.
4. RAM below the 8 GB floor
8 GB is Valhelsia 6's own recommended floor — covering tech, magic and exploration content simultaneously makes it heavier than a single-focus pack of similar mod count. Undersizing RAM here produces instability that's easy to mistake for a mystery bug.
FAQ
What Forge version does Valhelsia 6 need?+
The specific Forge 47.x build listed for your pack version (47.4.0 at the time of writing, on Minecraft 1.20.1) — not just any 1.20.1 Forge build. If the pack's changelog says it updated the Forge build, your server needs to match it exactly.
Does Valhelsia 6 need 64-bit Java?+
Yes — all Valhelsia packs require 64-bit Java specifically. Running a 32-bit JVM is a documented cause of problems across the whole pack family, not just this one.
Can I tell Forge to just skip broken entities instead of crashing?+
Yes — Forge has a built-in config option to remove erroring entities and tile entities on the fly instead of crashing the server outright. It's a safety net worth enabling if you're hitting a specific, hard-to-diagnose entity crash.
Host Valhelsia 6 on the correct Forge build by default
CoalHost pins the exact Forge build Valhelsia 6 needs and starts servers at the pack's measured 8 GB floor.
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