Ok here you go what i did
follow screenshots
first of all I went to check the path of this missing file
then you need to go to the following line in your Public HTML
public_html/yourdomain.com/images/com_hikashop/upload/thumbnails/50x50
then you need to upload the file there((( The barcode.png File)
that set you should be done, it seems the update did not include this file when it should uploaded to the folder 50X50
hope that help, im not sure if that going to work for everyone or not, but it works for me
Thanks
Sammy