Sherry, I have the full record of all acorn transactions here and I see the transactions you are referring to.
The acorns were successfully transferred, and the recipient was successfully notified. Their acorn count was incremented appropriately and yours was decremented appropriately. So you can rest assured that all worked as it should in that department.
As for the error you received, I will look into this but if it happens to you again, would you let me know?