This crash occurs I believe because of botania along with other problems because it makes mention of vazkii. I have had numerous occasions of this blowing up from both the recommended and latest mod versions but not all of them have given a crash report it seems as far as my crash log list goes...

Kaboom when trying to put into crafting bench in applied energistics.
http://pastebin.com/YJUwLjv0

Kaboom when trying to craft using tinkers bench
http://pastebin.com/QfjFFF1c

I also got kaboomed infinitely when putting one into a translocator crafting box which would constantly crash my world...

it has also kaboomed with normal and tinkers crafting benches.

Found due to trying to craft on enchantments onto the items using artifice upgrades.

Vazkii took a look at it before, I'm not sure if he made any progress with it. Go ahead and make an issue on his tracker, tell him to report back to me if he needs my assistance with something.

This has been confirmed to be an issue with Botanica a while ago.

Has it been reported to Vazkii or a fix proposed? or will it forever be a problem that I will occasionally forget about and then run into and rage-about because my need for early easy enchantments? :V (and yes, instant reply because I just happened to be checking all my followed locations at the minute that you replied. :P)

Roger that. :)

Relevant thread is #1913

This is due to Mine&Blade. I think that was established on the last thread already.