Hello, @Mody,
1- Actually, the category “Skin Product” is a default category that is “uncategorized” and you just changed its name to “Skin Product” in order to add this to the menu first set it as it was before and then create a new category assign the products to it then check back to your issue after clearing the browser cache it will be resolved.https://postimg.cc/ZWZj3nZm
2- Alright, I have removed the border and the empty spaces now the banner appears perfect. I have recorded a video for you to know how I make it. Here is the video link please watch it completely: https://streamable.com/ohmxwr
3- Navigate to the Dashboard >> XSTORE >> Theme Settings >> Header Builder >> Cart >> From there you will be able to change/remove the text as you want. see the image: https://postimg.cc/BjQQX58G
Regards 8Themes Team.