📍 Description (REQUIRED)

Nuclear reactor error: You probably wanted to alter a different ItemStack: PLUTONIUM is not mutable.

📑 Steps to reproduce the Issue (REQUIRED)

1. Maybe use PLUTONIUM on Nuclear reactor.

I don't know this 100%

💡 Expected behavior (REQUIRED)

Nuclear reactors works without errors.

📜 Server Log

📂 /error-reports/ Folder

https://pastebin.com/YSnDpdr1

🧭 Environment (REQUIRED)

[22:21:01 INFO]: This Server uses the following setup of Slimefun:
[22:21:01 INFO]: Paper v1_16_R2
[22:21:01 INFO]: CS-CoreLib vDEV - 91 (git e42a05d1)
[22:21:01 INFO]: Slimefun vDEV - 708 (git de5db26)
[22:21:01 INFO]: Metrics build: #17
[22:21:01 INFO]:
[22:21:01 INFO]: Installed Addons: (11)
[22:21:01 INFO]: DyedBackpacks vDEV - 9 (git c42435c1)
[22:21:01 INFO]: RestrictedCreative v2.4.4
[22:21:01 INFO]: ExtraTools vDEV - 20 (git cfc5b167)
[22:21:01 INFO]: PomaExpansion vDEV - 10 (git 3f46213c)
[22:21:01 INFO]: LiteXpansion vDEV - 81 (git 5d8b44cb)
[22:21:01 INFO]: SlimefunOreChunks vDEV - 9 (git 88dd72b0)
[22:21:01 INFO]: EcoPower vDEV - 2 (git b0c0c875)
[22:21:01 INFO]: HotbarPets vDEV - 31 (git 5909202f)
[22:21:01 INFO]: ExtraGear vDEV - 12 (git 4570ea2c)
[22:21:01 INFO]: SlimefunLuckyBlocks vDEV - 29 (git db79cb7c)
[22:21:01 INFO]: SlimefunPomaFix v1.0-SNAPSHOT

Thanks