We have made a number of fixes since the release 3.4.5 has been issued.
You can download the full set of all fixes for this release from here:
http://www.viart.com/downloads/viart_shop_fix-3.4.5.zip
Then extract all the fixed files into appropriate folders of your shop replacing existing ones.
Don't forget to make a backup copy of the current files in case something goes wrong.
