Damagesource is Not Null Mod (1.21.1, 1.20.1) – Never Crash Taking Damage
Damagesource is Not Null Mod is an addon for DSNNULL Basic that helps stop your game from crashing. Sometimes, other mods can cause a specific error related to damage that closes the game unexpectedly. This addon acts like a shield, catching the error before it can cause a problem. It replaces the bad information with a safe one so you can keep playing without interruptions. It also helps you figure out which mod is causing the issue by logging useful details.
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Features:
- Stops many common crashes caused by a “null DamageSource” error from other mods.
- When it finds an error, it replaces the bad damage source with a safe one to prevent a crash.
- Provides wider support for creatures and custom damage from third-party mods.
- Logs helpful diagnostic information to help identify the mod causing the problem.
- Acts as a runtime safety layer for broken damage events to keep your game stable.
- It is safe to use in single-player and on dedicated multiplayer servers.
Commands:
/dsnnull debug testall: This command scans all registered living mobs in the game and tries to identify any that are still vulnerable to the null damage source crash.
Screenshots:










How to Install:
New to Minecraft? Follow our step-by-step guide to install Mods on your PC.View Guide
Requirements:
NeoForge Required
Minecraft Forge Required
Fabric Loader Required
Fabric API Required
DSNNULL Basic Required
Damagesource is Not Null Mod Download Links
For Minecraft 1.21.1, 1.21
For Minecraft 1.20.1, 1.20
For Minecraft 1.19.2
For Minecraft 1.18.2
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April 24, 2026
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