Bananas Can Make Music?! (30 Minutes)

Fatal error: Uncaught Error: Call to a member function get_id() on false in /home/boomboum/public_html/learn.fflat-books.com/wp-content/plugins/learnpress/inc/lp-template-functions.php:105 Stack trace: #0 /home/boomboum/public_html/learn.fflat-books.com/wp-content/plugins/learnpress/templates/single-course/tabs/tabs.php(14): learn_press_get_course_tabs() #1 /home/boomboum/public_html/learn.fflat-books.com/wp-content/plugins/learnpress/inc/lp-template-functions.php(882): include('/home/boomboum/...') #2 /home/boomboum/public_html/learn.fflat-books.com/wp-content/plugins/learnpress/inc/templates/abstract-template.php(264): learn_press_get_template('single-course/t...', Array) #3 /home/boomboum/public_html/learn.fflat-books.com/wp-includes/class-wp-hook.php(324): LP_Template_Callback->callback('') #4 /home/boomboum/public_html/learn.fflat-books.com/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters(NULL, Array) #5 /home/boomboum/public_html/learn.fflat-books.com/wp-includes/plugin.php(517): WP_Hook->do_action(Array) #6 /home/boomboum/public_html/learn.fflat-books.com/wp-content/plugins/learnpress/templates/single-course/content.php(16): do_action('learn-press/cou...') #7 /home/boomboum/public_html/learn.fflat-books.com/wp-content/plugins/learnpress/inc/lp-template-functions.php(882): include('/home/boomboum/...') #8 /home/boomboum/public_html/learn.fflat-books.com/wp-content/plugins/learnpress/inc/templates/abstract-template.php(264): learn_press_get_template('single-course/c...', Array) #9 /home/boomboum/public_html/learn.fflat-books.com/wp-includes/class-wp-hook.php(324): LP_Template_Callback->callback('') #10 /home/boomboum/public_html/learn.fflat-books.com/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters('', Array) #11 /home/boomboum/public_html/learn.fflat-books.com/wp-includes/plugin.php(517): WP_Hook->do_action(Array) #12 /home/boomboum/public_html/learn.fflat-books.com/wp-content/plugins/learnpress/templates/content-single-course.php(34): do_action('learn-press/sin...') #13 /home/boomboum/public_html/learn.fflat-books.com/wp-content/plugins/learnpress/inc/lp-template-functions.php(882): include('/home/boomboum/...') #14 /home/boomboum/public_html/learn.fflat-books.com/wp-content/plugins/learnpress/templates/single-course.php(51): learn_press_get_template('content-single-...') #15 /home/boomboum/public_html/learn.fflat-books.com/wp-includes/template-loader.php(106): include('/home/boomboum/...') #16 /home/boomboum/public_html/learn.fflat-books.com/wp-blog-header.php(19): require_once('/home/boomboum/...') #17 /home/boomboum/public_html/learn.fflat-books.com/index.php(17): require('/home/boomboum/...') #18 {main} thrown in /home/boomboum/public_html/learn.fflat-books.com/wp-content/plugins/learnpress/inc/lp-template-functions.php on line 105