Error on hitting the ship button

[socceronly]

I get this error when I use the "Ship" button. 

It does toggle the Shipped/Pending status though. 

 

If it is toggling it, is there any reason I should not continue to use it?   

It's a lot of stuff to ship, I am supposed to get done this week.

Thanks

JM

[Jim M]

There was a bug resolved in a patch that was related to sending emails with EasyPost. I have applied that to your installation for you. Could you please try again now?