Hello,

Please navigate to Woodmart > Header builder http://prntscr.com/iyd2pe

Choose the proper header type (your current) http://prntscr.com/iyd333

Switch the mobile view of your header http://prntscr.com/iyd3v3

Set showing the category menu in the mobile menu element https://gyazo.com/6bd3ce2095ce4ca0212097ba5d5cf335

Best Regards