Hello, @sicula83,
1,2,3- You are using a very old version of the theme “8.3.4” see the image: https://postimg.cc/CdZg2BLv the latest version of the theme is “8.3.9” in order to solve your issues please first update the theme to the latest version. Here is an article to know how to update the theme: https://xstore.helpscoutdocs.com/article/63-theme-update
4- Simply navigate to the Dashboard >> XSTORE >> Theme Settings >> Header Builder >> Cart >> From there you will be able to change/remove the text see the image: https://postimg.cc/hzs1bPNT
Regards 8Themes Team.