Hello, @Kazi Sabit,
1- Alright, I have checked your site on my personal mobile there is no issue, it is working just fine. No matter if the category has 0 products or more than 2 products check the video for a better reference: https://streamable.com/6jzfh4 now please check back to your site after clearing the browser cache.
2- In order to know how to change the background color of the mobile menu please watch the video and follow the steps: https://streamable.com/4xjmme
Regards 8Themes Team.















