QuickBooks Online: Export Error (Business validation error)

DL_ETSOFT Expensify Customer Posts: 2 Expensify Newcomer

We are trying to export an expense from Expensify to QB Online, as we are used to doing so. This time we are getting this error : "Business Validation Error: All A/R and A/P accounts must be in the same currency". We do not understand as we haven't changed anything and so far it worked very well. Please advise. Thanks.