Pressing E causes crash

[tall forge]

TL;DR one, some or all of these mods are incompatible: "sinytra connector", "Fabric Language Kotlin" and "Forgified Fabric API"

I want to apologise before starting for not being able to give any clear reason for why this is happening.
Me and a couple of people have been trying to fix this issue for 2 days now and after hours of searching we figured out the crash is always caused by adding "Clutter no more"

1.20.1
Forge 47.4.10
Java 17.0.12

It is a huge modpack with around 366 mods which makes figuring out exactly why this is happening extra difficult.
However we managed to narrow the problem down to three possible mods.
The crash logs say the suspected mod is "Fabric Item API"
after removing "sinytra connector", "Fabric Language Kotlin" and "Forgified Fabric API" the issue has been resolved

Minecraft crashed. The logs have been uploaded to gnomebot.dev:

latest.log head / tail (~32k lines) | debug.log head / tail (~19MB & ~94k lines) | crash-2026-02-08_20.02.17-client.txt | PrismLauncher-0.log | KubeJS: client.log / server.log / startup.log | crafttweaker.log | crash_assistant_app.log | modlist.txt

Mod list changes after the latest successful launch:

Mod list was not modified.

maybe it could be useful probably useful

[jagged mountain]

it's an incompatibility with forgified fabric api on 1.20.1 specifically, despite attempts to work around it on our side

[jade salmon]

Is there a compatible version of either CNM or FFAPI I can downgrade to?