Another course for example
Fatal error: Uncaught Error: Call to undefined function learndash_get_option() in /home/ydnbuedu/public_html/wp-content/plugins/u-shortcodes/shortcodes/post-carousel.php:147
Stack trace:
#0 /home/ydnbuedu/public_html/wp-includes/shortcodes.php(434): parse_u_post_carousel(Array, '', 'u_post_carousel')
#1 [internal function]: do_shortcode_tag(Array)
#2 /home/ydnbuedu/public_html/wp-includes/shortcodes.php(273): preg_replace_callback('/\\[(\\[?)(u_post...', 'do_shortcode_ta...', '[u_post_carouse...')
#3 /home/ydnbuedu/public_html/wp-content/plugins/js_composer/include/helpers/helpers.php(240): do_shortcode('[u_post_carouse...')
#4 /home/ydnbuedu/public_html/wp-content/plugins/js_composer/include/templates/shortcodes/vc_column.php(94): wpb_js_remove_wpautop('[u_post_carouse...')
#5 /home/ydnbuedu/public_html/wp-content/plugins/js_composer/include/classes/shortcodes/core/class-wpbakeryshortcode.php(271): require('/home/ydnbuedu/...')
#6 /home/ydnbuedu/public_html/wp-content/plugins/js_composer/include/classes/shortcodes/core/class-wpbakeryshortcode.php(244): WPBakeryShortCode->loadTemplate(Array, '[u_post_carouse...')
#7 /home/ydnbuedu/public_html/wp-content/plugins/js_composer/include/classes/shortcodes/core/class-wpbakeryshortcode.php(366): WPBakeryShortCode->content(Array, '[u_post_carouse...')
#8 /home/ydnbuedu/public_html/wp-content/plugins/js_composer/include/helpers/helpers.php(1317): WPBakeryShortCode->output(Array, '[u_post_carouse...')
#9 /home/ydnbuedu/public_html/wp-includes/shortcodes.php(434): vc_do_shortcode(Array, '[u_post_carouse...', 'vc_column')
#10 [internal function]: do_shortcode_tag(Array)
#11 /home/ydnbuedu/public_html/wp-includes/shortcodes.php(273): preg_replace_callback('/\\[(\\[?)(u_post...', 'do_shortcode_ta...', '[vc_column][u_p...')
#12 /home/ydnbuedu/public_html/wp-content/plugins/js_composer/include/helpers/helpers.php(240): do_shortcode('[vc_column][u_p...')
#13 /home/ydnbuedu/public_html/wp-content/plugins/js_composer/include/templates/shortcodes/vc_row.php(156): wpb_js_remove_wpautop('[vc_column][u_p...')
#14 /home/ydnbuedu/public_html/wp-content/plugins/js_composer/include/classes/shortcodes/core/class-wpbakeryshortcode.php(271): require('/home/ydnbuedu/...')
#15 /home/ydnbuedu/public_html/wp-content/plugins/js_composer/include/classes/shortcodes/vc-row.php(40): WPBakeryShortCode->loadTemplate(Array, '[vc_column][u_p...')
#16 /home/ydnbuedu/public_html/wp-content/plugins/js_composer/include/classes/shortcodes/core/class-wpbakeryshortcode.php(366): WPBakeryShortCode_Vc_Row->content(Array, '[vc_column][u_p...')
#17 /home/ydnbuedu/public_html/wp-content/plugins/js_composer/include/helpers/helpers.php(1317): WPBakeryShortCode->output(Array, '[vc_column][u_p...')
#18 /home/ydnbuedu/public_html/wp-includes/shortcodes.php(434): vc_do_shortcode(Array, '[vc_column][u_p...', 'vc_row')
#19 [internal function]: do_shortcode_tag(Array)
#20 /home/ydnbuedu/public_html/wp-includes/shortcodes.php(273): preg_replace_callback('/\\[(\\[?)(u_post...', 'do_shortcode_ta...', '<p>[vc_row u_ro...')
#21 /home/ydnbuedu/public_html/wp-includes/class-wp-hook.php(324): do_shortcode('<p>[vc_row u_ro...')
#22 /home/ydnbuedu/public_html/wp-includes/plugin.php(205): WP_Hook->apply_filters('<p>[vc_row u_ro...', Array)
#23 /home/ydnbuedu/public_html/wp-includes/post-template.php(256): apply_filters('the_content', '[vc_row u_row_s...')
#24 /home/ydnbuedu/public_html/wp-content/themes/university/page.php(25): the_content()
#25 /home/ydnbuedu/public_html/wp-includes/template-loader.php(106): include('/home/ydnbuedu/...')
#26 /home/ydnbuedu/public_html/wp-blog-header.php(19): require_once('/home/ydnbuedu/...')
#27 /home/ydnbuedu/public_html/index.php(17): require('/home/ydnbuedu/...')
#28 {main}
thrown in /home/ydnbuedu/public_html/wp-content/plugins/u-shortcodes/shortcodes/post-carousel.php on line 147