Context

Plugin name: DeadChest
Plugin version: 4.9.0
Minecraft version: 1.18.2
Server type (Bukkit/Spigot/Paper...) Bukkit

Describe the bug
Just updated server to 1.18.2 and plugin to 4.9.0 and receive this error when I start my server

To Reproduce
Start server

Expected behavior
Plugin should be enabled.

:

Resolved: copied my Deadchest folder out of my world folder and started my server so it created new ones. Then copied my old files into the new folder and the error was no longer present. Is pointing to it being an issue with my old locale file.