General Information

Describe the bug:
Saw a zombie spawn in Shadow Steel armor and proceeded to attack it with my weapon which therein caused a crashed due to an attempt to tick the entity

To Reproduce:

1. Find a zombie with Shadow Steel gear applied to it.
2. Attack

Environment Versions

Versions:

• Metallurgy: Metallurgy 4: Reforged 1.3.2
• Conflicting mod (if regarding mod integration): Unknown
• Other mods you think could cause issues: Tinker's Construct
• Forge: 8.0.99.99
• Minecraft: 1.12.2
• Modpack (if available): N/A

Logging Information

Crash Report (if available):
https://pastebin.com/uyPnNbUA

Additional Information

Additional context (optional):
I had used a Tinker's construct Cleaver to damage the zombie in question made out of steel and Astral Silver with some quartz. I'm not technical in the slightest so I can't quite make heads or tails of much. If there's anything more you need please inform me and I'll do my best to get it.