Invoice import bug! NOTICE: [8] Undefined property: AOS_Invoices::$currency_id on line 40 in file *****

I tried on version 7.8.2, 7.8.3 and even 7.9.0 beta, and I got the same warning that caused error when importing invoices. Can anybody pay attention to this and get this solved? Thanks:

NOTICE: [8] Undefined property: AOS_Invoices::$currency_id on line 40 in file ******public_html/modules/AOS_Products_Quotes/AOS_Utils.php

you might get more traction if you posted this in the correct place. this thread is for feedback not issues.