They're supposed to have a scanned copy of your file -- every single page.. So that could just work for them. I mean. It's a grave mistake.. they should think of ways of not putting the burden of producing another file from you. Did you ask which forms do they need or they need everything?
You can order a copy of your scanned application package (unless scanned copy was destroyed too) via ATIP but that will take 30 days. Gather up what you can and send via email asap. Hope they prioritize your file as well. Good luck.