Product Categories & Products Getting Random insertion of "p" in URLs

-- HikaShop version -- : 3.0.1
-- Joomla version -- : 3.6.5
-- PHP version -- : 5.6.30
-- Browser(s) name and version -- : FFWIN64
-- Error-message(debug-mod must be tuned on) -- : No error - broken links

Some URLs for categories and products are getting a "p" inserted into the URL.

The result is that the Category clicked takes the user back to the top of the store. If a product, we get a product 404 error.

Do a search for "1921" and check "1921 Model T Center Door"

A whole lot of our products are no longer accessible to the public, and this is a horrible situation. What can we do to fix this problem?

Okay, got it, thanks!

I hope you'll note this in the documentation. Fortunately not a lot of our products begin with a numeric value, and it is easy enough to fix this on the car models by moving their dates to the end.

We've fixed it for us, but it occurs to me that this is something that could heavily impact certain types of online stores. Automobiles would be one. Another might be antique dealers. There are probably more that use date based values.

You have a workaround, but this is still a problem that hopefully you can address.