Prerequisites

• I am running the latest alpha version of MineColonies and Structurize for my Minecraft version.
• I checked the MineColonies/Structurize wiki and made sure my issue is not covered there.
• I made sure that this issue is not a duplicate of any existing issue.

Context

• Minecraft Version: 1.16.5
• MineColonies Version: minecolonies-0.14.154-ALPHA-universal.jar
• Structurize Version: structurize-0.13.171-ALPHA-universal.jar
• Related Mods and their Versions:

Expected behavior

Builder's GUI

Actual behavior

Upon interacting with the builder after instructing them to build the builder's hut structure, the game will freeze and then crash.

Steps to reproduce the issue

1. Create colony like you normally would
2. Place builder's hut block
3. Begin the structure by hiring a colonist to become a builder
4. interact with builder
5. game crashes

Logs

• latest.log: https://gist.github.com/TripConeHead/9f1f69686cd26095b864482d5a947edb
• crashlog: https://gist.github.com/TripConeHead/9237156b65d8e6833baeeb91c15b4105

Notes

Tried multiple times in different worlds with different colonies, same results every time.

Viewers

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There is a mod adding invalid tools to your game that crash because they null things that can't be null.