thermal expansion with CC:Tweaked not have command getMaxStored() from cache, and command getMetadata(), hardness == 10 and 10 for cache upgrade hardened and reinforced

modpack direwolf 1.12.2

Mod integration issues are generally a problem with plethora - that's what adds most integration code. That said, the Direwolf20 pack doesn't include either CC: Tweaked or Plethora, so I've no idea how you've placed a computer.