Hi,
That's really strange.
then create a new mass action via the menu System>Mass action with a filter on the column "product_code" with your product code and an action "display the results". When you process it, that will display the entry with that product_code if any. If not, it really means that there is no product with such code.
Regarding the dashboard, it indeed seems that you removed all the orders data that you had.
But maybe both problems can be explained by your data being corrupt on your website. Try to repair your website tables, maybe that will help:
www.siteground.com/tutorials/phpmyadmin/...ptimize_database.htm
You can also try clicking on the "check database" button of the HikaShop configuration.