Teach :
Fatal error: Uncaught Error: [] operator not supported for strings in /homepages/3/d749212856/htdocs/app749212940/wp-content/themes/danlet/inc/custom-function/danlet_custom_function.php:382 Stack trace: #0 /homepages/3/d749212856/htdocs/app749212940/wp-includes/class-wp-hook.php(307): danlet_teacher_detail('') #1 /homepages/3/d749212856/htdocs/app749212940/wp-includes/class-wp-hook.php(331): WP_Hook->apply_filters('', Array) #2 /homepages/3/d749212856/htdocs/app749212940/wp-includes/plugin.php(476): WP_Hook->do_action(Array) #3 /homepages/3/d749212856/htdocs/app749212940/wp-content/themes/danlet/single-teacher.php(23): do_action('danlet_teacher_...') #4 /homepages/3/d749212856/htdocs/app749212940/wp-includes/template-loader.php(106): include('/homepages/3/d7...') #5 /homepages/3/d749212856/htdocs/app749212940/wp-blog-header.php(19): require_once('/homepages/3/d7...') #6 /homepages/3/d749212856/htdocs/app749212940/index.php(17): require('/homepages/3/d7...') #7 {main} thrown in /homepages/3/d749212856/htdocs/app749212940/wp-content/themes/danlet/inc/custom-function/danlet_custom_function.php on line 382