How can I fix the header color issue on different pages?

[obito_uchiha01]

Header of home page is transparent as per image

because of this header of different pages become white and menu was not visible so i changed its background color of header to black on different pages except the home page.
Now i’m stuck with header of short length as per image:

how can i fix this???

[BSS-Commerce]

Hi @obito_uchiha01 ,
Can you kindly share your store link (with the password, if any) with us? We will check it and suggest you a solution if possible.