I updated my Fedex module to 1.3.5a for my cart (v1.3.5) because orders over 70lbs were not giving any fedex options. Now, when I try and checkout I get the error "No Rates Returned, F021 : Invalid currency type."

Fedex debug info returned:

0,"125"2,"F021"3,"Invalid currency type."99,""

and the admin panel has input fields with blank labels. In the html code the input fields that have no label are:

MODULE_SHIPPING_FEDEX_GROUND_SURCHARGE_PERCENT
MODULE_SHIPPING_FEDEX_GROUND_CURRENCY

What am I missing here? Permissions are correct. Do I need to update to 1.3.7.1? Thanks!