Hello,
The logo of the theme can be changed only via WoodMart -> Header builder -> edit the “Logo” item and replace the logo.
https://gyazo.com/84ffa4cef020b9974676588de3f1dce6
If you want to change the logo for the mobile, then change the layout from desktop to mobile and do the same thing as described above.
https://monosnap.com/file/elFlWKZ4M2Dgr7WUSzEl8Mp83spwni
If you would like to discuss the issue further, our customer support team is here for you.
Kind Regards