Fatal error: Uncaught Error: Call to undefined function is_shop() in /home/chrisa22/public_html/wp-content/themes/Avada/header.php:875 Stack trace: #0 /home/chrisa22/public_html/wp-includes/template.php(722): require_once() #1 /home/chrisa22/public_html/wp-includes/template.php(671): load_template('/home/chrisa22/...', true) #2 /home/chrisa22/public_html/wp-includes/general-template.php(41): locate_template(Array, true) #3 /home/chrisa22/public_html/wp-content/themes/Avada/author.php(1): get_header() #4 /home/chrisa22/public_html/wp-includes/template-loader.php(98): include('/home/chrisa22/...') #5 /home/chrisa22/public_html/wp-blog-header.php(19): require_once('/home/chrisa22/...') #6 /home/chrisa22/public_html/index.php(17): require('/home/chrisa22/...') #7 {main} thrown in /home/chrisa22/public_html/wp-content/themes/Avada/header.php on line 875