Error when /autosort done without argument

[Momshroom]

First, tysm for taking over development of this plugin!

When someone does /autosort in game without an argument, the following console error occurs:

https://paste.gg/p/anonymous/497acc21b5b0497899a96ac067aea81d

Running automatic inventory 4.0.0 on paper 1.21.1 build 132 (also occurs on build 65)