After a few hours of online time this bungeecord starts to give errors and resulted that redis bungee has stopped working.

https://pastebin.com/64PYg7LN

Version: LuckPerms-Bungee-4.0.5

Something is null on this line

https://github.com/lucko/LuckPerms/blob/master/bungee/src/main/java/me/lucko/luckperms/bungee/listeners/BungeePermissionCheckListener.java#L56

Either plugin, getUserManager() or getUuidCache().

Are you reloading the plugin, or something like that? There's no reason why those instances would suddenly become null during the runtime of the plugin, unless it was disabled.

Nope, we didn't reload anything related. It just happened out of nowhere.

Not sure what to suggest then. No reason for any of that to be null, it's not reassigned during the runtime of the server.

The issue didn't happen the last days, so strange. Probably an issue on our side.