Dev 2521 Engine error selling pelts to a vendor

I opened “Jess Vexxed Tannery” vendor and began to sell pelts and these two error windows popped up. No visible error in game and vendor appeared to behave as normal.

System: Win7 home premium x64
Intel Core i7 @2.4GHz
Nvidia GTX650M w/ 1GB GRAM

<develop-2521 (x64)
stonehearth/services/server/shop/shop.luac:107: attempt to index local ‘sellable_items’ (a nil value)
stack traceback:
[C]: ?
stonehearth/services/server/shop/shop.luac:107: in function 'sell_item’
stonehearth/services/server/shop/shop.luac:118: in function <stonehearth/services/server/shop/shop.luac:118>>

Followed by:

<develop-2521 (x64)
c++ exception: lua runtime error
stack traceback:>