Crash on Tick modules and Notifier

[Johnsmith927]

Steps to reproduce

1. Run minecraft 1.21 with meteor
2. Join server
3. Either crash during loading terrain or crash while in server
4. In logs, crash because of On Tick modules (ive crashed because of NoFall.onTick, Flight, and Logout Spots, ive crashed usually to NoFall but a couple times to Flight and once to Logout Spots)
5. Also in logs, crash because of the Falling Sand entity with Notifier

Link to crash report/log (upload to https://mclo.gs and paste resulting link here)

https://mclo.gs/L2sixxy

Meteor Version

Meteor 0.5.8

Minecraft Version

1.21

Operating System

macOS

Before submitting a crash report

• [X] This crash wasn't already reported (I have searched crash reports on GitHub).

• [X] This is a valid crash (I am able to reproduce this on the latest dev build).