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Issue description:

The game had an unknown crash, and the report showed that it was the problem

Sorry to bother you

Version (make sure you are on the latest version before reporting):

Forge:1.12.2
Mekanism:1.12.2-9.8.3.390
Other relevant version:

If a (crash)log is relevant for this issue, link it here: https://gist.github.com/593681878/726b5ddb4695bc79728298323c04a3ba

from what i can understand, Deep Mob Learning is trying to do something with mekanism but failing at it

Something corrupted/screwed up your world and is causing a deep mob learning extraction chamber tile to be in the spots one of our blocks is. As a work around you can probably in the forge config set it to remove erroring tile entities (which might fix it I forget), if not you can probably use an external world editor like MCEdit to remove the block.