If the problem persists with the child theme only, you need to check your custom changes there.
Please note that we are not responsible for custom changes that you do in the child theme.
Our clear child theme is included in the theme package ( XStore – All files, full archive https://www.8theme.com/downloads/ ), so you can compare codes.
One standard license is valid only for 1 project. Running multiple projects on a single license is a copyright violation.