Where did my basement helper go?

I've checked a number of different versions recently, but I am missing the basement helper. I'm almost 100% certain it's some setting I have messed up because my friend with the exact same version has it.

Any suggestions?

Also, you know, it might be related, but the maximizer thingie has also stopped giving me potions and effects advice.. the equipment is right on, but that's all I'm getting.

Thanks for your help.
 
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