Square: Receiving Invalid Location ID error

Things look ok on my end and it shows that my square account is connected by I had a client that could not submit her payment. Attached is the error she received. Can you help me figure out what the issue is an how to correct it. Thanks so much. 

Hello @BigFishStories - Please try disconnecting your Square payment integration and reconnect it again. After that please advise your user to retry submitting the form:

If it still persists, please try removing this disabled product, save it and see if that makes any difference:

Let us know how it goes.