Minecraft Version

1.20.1

KubeJS Version

kubejs-forge-2001.6.5-build.2

Rhino Version

rhino-forge-2001.2.2-build.18

Architectury Version

architectury-9.2.14-forge

Forge/Fabric Version

Forge 47.2.20

Describe your issue

I noticed an error and decided to report it
If you need anything from me, let me know

Crash report/logs

https://paste.fuix.net/AabtheQ

I believe this was been fixed a while ago.

server_scripts.zip

Can you show all your recipe scripts please? Specifically any that have json (event.custom) recipes.

The fact is that in kubejs I do not have recipes related to "mekaweapons"

Can I send you a zip here?

I don't think the mekaweapons warning is related, its probably just the mod author forgetting something in their recipe class. Yes you can send a zip of the code here.

A paste version of the scripts is available here: https://gnomebot.dev/paste/1218734924660604998

Looks like it is caused by one of your remove lines, though I'm not sure which (its likely that it would be all of them too).
Specifically its caused by filtering a json recipe by output and the code in KJS here: https://github.com/KubeJS-Mods/KubeJS/blob/2001/common/src/main/java/dev/latvian/mods/kubejs/recipe/JsonRecipeJS.java#L40 where KubeJS just casts JsonRecipeJS to Recipe, which I don't think would ever work.

As a temporary fix you can disable match json recipes in the kubejs/config/common.properties file.