HEADER DISSAPEAR and QUANTITY PICKER LOCATION

Hi folks
Does anyone help me out how to get HEADER back on Homepage and quantity picker on mobile locate center from left allign?

Much appreciate your help I’m in problems

Hello, @LG999

Welcome to the Shopify Community.
I read your problem and it seems that I need to analyze your website to provide the solution here.
Would you please share your website URL and if your website is password protected then also provide the password.

Thank you for your reply
Oh sorry
This is website homepage for HEADER
https://luxgate.co/
And this is for landing page for QUANTITY PICKER (please check mobile ver)
https://luxgate.co/products/lisen-%E3%82%B9%E3%83%9E%E3%83%9B%E3%83%9E%E3%82%B0%E3%82%BF%E3%83%B3%E3%83%96%E3%83%A9%E3%83%BC

@LG999 Can you please explain with screenshots?

Here they are!

@LG999

A) Regarding your header issue, I will need Shopify access to check what happened to the header by checking the code.

B) Regarding the quantity box, Please go to

  1. Online store
  2. Themes → Edit theme
  3. Layout
  4. theme.liquid and paste this code before

If it works, then please accept my answer as a solution and Like.

Deeply appreciate it!

B is worked !!
How can I let you access to my page for checking?

@LG999 sent you a private message. please check