Good afternoon, Sage 50 Canada RDS continues to just shut down/crash.

I CAN create and process an invoice, create and process a receipt... But every time I try to process an invoice I've just adjusted or try to delete an invoice and process it, Sage just shuts down.  

I don't get an error code or message, it just shuts off and when I log back in, the changes aren't processed.  The same thing is happening to the other user of this company file. We are using Windows 10, this problem began this afternoon, and nothing new has been done or updated recently.  Also tried running as Sysadmin and still does this.