After two mails to your support address and meanwhile more than 3 weeks of waiting for an answer, I try it now on this way to get support for my problems.

I`m using Joomla 3.9.13 and Virtuemart 3.6.8 10197. I have got 2 issues which I can`t solve by myself and ask for your help.

Bootstrap Problem

If I preset to use Bootstrap 2, 3 or 4 version, the layout and display of the categories and products is fine, but the add to cart button and all adress input is not working. Tells me 500 - Layout „bs2-edit_address“ not found!

If I preset no bootstrap version then alle buttons are working but the layouts are not working correctly,

Translations
I did all the translations as you suggested in your documentation and also created a German virtuemart ini file within the suggested path depending on your documentation.
It seems to me now, that the translation is only partly working. In the product detail view it looks correct (apart from the layout), in all the list views is no translation for the basic system terms like price terms or add to cart button of Virtuemart.