Hello,
As the square boxes are shown except of icons in your site to fix this try to regenerate the CSS from WoodMart >> CSS generator.
Also, please go to Theme Settings and resave it and check your site after removing the site and browser cache.
Also you need to make sure that the “http” or “https” used in URL must be the same in both “WordPress Address (URL)” and “Site Address (URL)” from Settings >> General. This will surely fix the issue.
To display the search inside your header you need to go to >> Dashboard >> WoodMart >> Header Builder >> Your default header >> Add the search element.
Screenshot for clarification: https://jmp.sh/RmCMITX
Best Regards.