Expected Behavior

Expected to be able to pick up summoned skeletal steed

Actual Behavior

Server crashes, nearby players crash as well
Malformed CarryOnData tag saved in the player's data causes the server to crash again with the same error when they log in again, and must be removed with an NBT editor before they can rejoin

Steps to Reproduce

Install Ars Noveau and Ars Elemental, find and use a Skeletal Steed tome, then try to pick up the summoned skeleton horse

Version of Minecraft, Carry On, Forge/Fabric

Minecraft 1.19.2
Forge 43.2.0
Carryon 2.0.5.10

Screenshots encouraged

patched this to fail quietly, instead of crashing the server