Fatal error: Uncaught Error: Call to undefined function get_template_directory() in /home/handllu1/public_html/redboys/themes/classes/class-twenty-twenty-one-custom-colors.php:13 Stack trace: #0 {main} thrown in /home/handllu1/public_html/redboys/themes/classes/class-twenty-twenty-one-custom-colors.php on line 13