The google tag manager code is not showing up on my site when I viewed the page source.I placed my google analytics global site tag on my website using generatepress editor a year ago. Now, google analytics notified me that my website is not receiving hits..so I wanted to add again the global site tag using Gneratrepress theme editor..but I can’t find the head.php anymore..have there been some changes? please help. Link to the website is in the private info field. Thanks!