Error realm with some addons

An error when trying to use addons in a realm world, it does not allow to use certain addons.

The name of the addon is Waystone addon 
Link of the creator and youtube video: https://www.youtube.com/watch?v=amOPn2F-K20 
Link to the demo video: https://we.tl/t-G2M9sj3BoB

Step 1
install the addon in the realm world 
Step 2
enter the world
Step 3
craft or grab the waystone from the creative and place it on the ground
Step 4: 
Interact with the waystone
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How it should work: Opens a menu that allows you to add a waypoint. 
Observed: game crashes unexpectedly while interacting with the waystone