Almost every plugin fails to be converted, crashing the server

[kokiriglade]

Stack trace

https://pastes.dev/7LSSfOmBQV

Plugin and Datapack List

2024-06-24 00:03 +01:00: [00:03:05 INFO]: Paper Plugins:
2024-06-24 00:03 +01:00: [00:03:05 INFO]:  - bedrock, calendar, FancyHolograms, FancyNpcs, minephone, navigate, popcorn_test, sport, storehouse, vehicles
2024-06-24 00:03 +01:00: [00:03:05 INFO]:  visuals
2024-06-24 00:03 +01:00: [00:03:05 INFO]: Bukkit Plugins:
2024-06-24 00:03 +01:00: [00:03:05 INFO]:  - CommandBlockWhitelist, ConsoleSpamFix, CraftingStore, DisplayEntityEditor, dynmap, Elevator, Essentials, FastAsyncWorldEdit,
 GSit, HeadDatabase
2024-06-24 00:03 +01:00: [00:03:05 INFO]:  LuckPerms, Multiverse-Core, packetevents, PlaceholderAPI, spark, TAB, Vault, WorldEditSUI, WorldGuard

Actions to reproduce (if known)

Run a 1.21 build higher than #34 and try to run plugins such as TAB or FAWE(this does not happen on #33)

Paper version

Build #35 - sorry I don't have a /version output, I downgraded to #33

Other

No response