After installing the mod, I can't access my game saves.

Error while running event boxing-button::on_init()
boxing-button/script/init.lua:13: attempt to index field '?' (a nil value)
stack traceback:
boxing-button/script/init.lua:13: in function <boxing-button/script/init.lua:2>

That code scans all the boxing recipes. Have you installed any mods that affect boxing recipes?

I uploaded a new version that ignores the recipe if that data is missing. Please try that. If it still can't initialize when you run it, I will want to add instrumentation to find out what is happening.

I'm not sure which mod was causing the crash, but after updating to the latest version, I can access the game without any issues. Thank you.