Hello,

Thank you very much for choosing our theme and contacting our support.

Please provide your site admin access for checking and provide more details:

1. New product cannot be added, right? Please provide screens of errors if any.

2. What changes are not applied? In header? If so, Navigate to Woodmart > Head builder http://prntscr.com/iyd2pe
Choose the proper header type (your current) http://prntscr.com/iyd333
Modify elements as per your needs: http://prntscr.com/iyd3h3
Take into consideration that there is also the mobile view of your header http://prntscr.com/iyd3v3 check all the elements there.

Best Regards