[SOLVED] Shopping Cart Module not working

[MAD King]

When I add a product into the cart and keep browsing, products disappear and the cart shows empty.

Joomla! 3.4.1 Stable
PHP Version 5.4.38
VirtueMart 3.0.6.2

[jenkinhill]

VM3.0.6.4 was released to be J3.4.1 compatible.

[MAD King]

Thank you. I am not getting any update info in the backend anymore.

[jenkinhill]

3.0.6.4 was a rush release to solve J3.4.1 related issues. You should get notice when 3.0.7 stable is released.

[MAD King]

Cannot install 3.06.4


Warning

JInstaller: :Install: Can't find XML setup file.
Error

Path does not have a valid package.

Unable to find install package


EDIT: After trying to update to 3.0.6.4, the whole system is messed up (VM) cannot even save the config file anymore.

[MAD King]

UPDATE: Managed to get it updated, but still the same problem with the cart. Products disappear after browsing.

[MAD King]

I found out what causes to empty the cart. I have everything on SSL, but I did a regular http on my logo link, so every time the logo gets clicked, it empties the card because of the non https.