Hi Karel,
I figured out the fix for this. Spiceworks (our current helpdesk) auto populated with the date format as "01-01-16 @ 1:00pm" .
I changed all of these to simply have 01/01/16 as the date format and it seems to have worked.
Thanks anyway 🙂
***EDIT:***
Scratch that...it stayed on the "treating file" stage for a while, then went off. I checked the helpdesk tickets, and it was still empty. Tried it again and the same error message came back.