Luckperms is having issues with viaverison as they changed somethings of their api.

https://i.gyazo.com/1e5dcf861657be1d4cf13df882e8a647.png

1. Follow the issue template, do not ignore it! It helps us help you
2. Update LuckPerms https://luckperms.net/download

I can confirm this for the latest luckperms release 5.3.42 and ViaVersion 4.0.0.
ViaVersion changed some things in their api and luckperms needs to be updated.
You can find the changes made to the ViaVersion API here: https://gist.github.com/KennyTV/3778685985ddc45bd99e003191ff02eb

Affected Platforms: Bukkit, BungeeCord

Download devbuild https://ci.lucko.me/job/LuckPerms/

This is caused by the Adventure library platform implementations, KyoriaPowered/adventure-platform, specifically BukkitFacet$ViaHook:L347 not cooperating with the 4.0.0 API of ViaVersion. Not technically an issue to do with LuckPerms, a PR needs to be made to Adventure Platform.

EDIT: It's actually already been fixed in this commit. LuckPerms just needs to update its dependency on Adventure and rebuild.

I've published a new release with this fix included (it's been fixed in dev builds for a little while)

Thanks all for the reports / interpretations though :)