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Describe the bug
Sometimes, if the player buys from the researcher a map that should bring them to a vanilla village with a golem house, the server would crash, and everything related to it would freeze until the world is reopened.

To Reproduce

1. Reach a researcher.
2. Buy a map for the golem house.
3. The server has a chance of crashing.

Expected behavior
The server should not crash.

Screenshots
Not needed

Additional context
This function might be related to it, more investigation is needed.