The menu on the computer was normal and has automatically changed

Hello!
The menu on the computer was normal and has automatically changed, how can I go back as before?
In the mobile it has also changed by putting this white line below the menu.
I attach images.
Thank you!

Desktop

Mobile

Hello,

I’m not sure what exactly you want to achieve, can you please describe it more precisely?

Kind Regards, Roman.
aThemes Support