Crash after opening inventory (pressing I key)

System specs:
- win 10
- i5 2500k
- radeon 280x
- 8gb ram

as the title says, the game crashes after attempting to open the inventory by pressing the 'I' key.
I haven't been able to reproduce this reliably, seems a little random to me. I think it is more likely to happen after doing cooking related things.
Error.txt is appended.

Attachment 97

I think this may be from picking up grapes? But am not certain...

I've put in a guard against it that should be in the next update, which we're hoping to put out there tomorrow.

Cheers,
Neal