Sage 50 Canada

For some reason all of a sudden today Sage50 gave me this error message when posting a vendor invoice. Posting vendor invoices yesterday=no problem. Anyone have this issue or know what this means? Thanks, Kristine

I have set up one of our vendors to receive an email notification that I have received and entered their invoice into Sage 50. Does Sage 50 have any kind of report set up to track such emails to vendors, sent from within Sage 50? (I don't seem to be…