Fatal error: Uncaught TypeError: Unsupported operand types: string / int in /home/beatrizcueto/public_html/wp-content/plugins/masterstudy-lms-learning-management-system/_core/lms/classes/helpers.php:167 Stack trace: #0 /home/beatrizcueto/public_html/wp-content/plugins/masterstudy-lms-learning-management-system/_core/lms/classes/courses.php(59): STM_LMS_Helpers::is_sale_price_active() #1 /home/beatrizcueto/public_html/wp-content/plugins/masterstudy-lms-learning-management-system/_core/stm-lms-templates/elementor-widgets/courses/card/card-style-1/main.php(3): STM_LMS_Courses::get_course_submetas() #2 /home/beatrizcueto/public_html/wp-content/plugins/masterstudy-lms-learning-management-system/_core/lms/classes/templates.php(132): include('...') #3 /home/beatrizcueto/public_html/wp-content/plugins/masterstudy-lms-learning-management-system/_core/lms/classes/templates.php(140): STM_LMS_Templates::load_lms_template() #4 /home/beatrizcueto/public_html/wp-content/plugins/masterstudy-lms-learning-management-system/_core/stm-lms-templates/elementor-widgets/courses/courses-archive/main.php(77): STM_LMS_Templates::show_lms_template() #5 /home/beatrizcueto/public_html/wp-content/plugins/masterstudy-lms-learning-management-system/_core/lms/classes/templates.php(132): include('...') #6 /home/beatrizcueto/public_html/wp-content/plugins/masterstudy-lms-learning-management-system/_core/lms/classes/templates.php(140): STM_LMS_Templates::load_lms_template() #7 /home/beatrizcueto/public_html/wp-content/plugins/masterstudy-lms-learning-management-system/_core/includes/elementor/widgets/courses/ms_lms_courses.php(631): STM_LMS_Templates::show_lms_template() #8 /home/beatrizcueto/public_html/wp-content/plugins/elementor/includes/base/controls-stack.php(2265): StmLmsElementor\Widgets\MsLmsCourses->render() #9 /home/beatrizcueto/public_html/wp-content/plugins/elementor/includes/base/widget-base.php(609): Elementor\Controls_Stack->render_by_mode() #10 /home/beatrizcueto/public_html/wp-content/plugins/elementor/includes/base/widget-base.php(750): Elementor\Widget_Base->render_content() #11 /home/beatrizcueto/public_html/wp-content/plugins/elementor/includes/base/element-base.php(464): Elementor\Widget_Base->print_content() #12 /home/beatrizcueto/public_html/wp-content/plugins/elementor/includes/base/element-base.php(1375): Elementor\Element_Base->print_element() #13 /home/beatrizcueto/public_html/wp-content/plugins/elementor/includes/base/element-base.php(464): Elementor\Element_Base->print_content() #14 /home/beatrizcueto/public_html/wp-content/plugins/elementor/includes/base/element-base.php(1375): Elementor\Element_Base->print_element() #15 /home/beatrizcueto/public_html/wp-content/plugins/elementor/includes/base/element-base.php(464): Elementor\Element_Base->print_content() #16 /home/beatrizcueto/public_html/wp-content/plugins/elementor/core/base/document.php(1739): Elementor\Element_Base->print_element() #17 /home/beatrizcueto/public_html/wp-content/plugins/elementor/core/base/document.php(1134): Elementor\Core\Base\Document->print_elements() #18 /home/beatrizcueto/public_html/wp-content/plugins/elementor/includes/frontend.php(1179): Elementor\Core\Base\Document->print_elements_with_wrapper() #19 /home/beatrizcueto/public_html/wp-content/plugins/elementor/includes/frontend.php(1074): Elementor\Frontend->get_builder_content() #20 /home/beatrizcueto/public_html/wp-includes/class-wp-hook.php(310): Elementor\Frontend->apply_builder_in_content() #21 /home/beatrizcueto/public_html/wp-includes/plugin.php(205): WP_Hook->apply_filters() #22 /home/beatrizcueto/public_html/wp-includes/post-template.php(256): apply_filters() #23 /home/beatrizcueto/public_html/wp-content/themes/ms-lms-starter-theme/templates/page/index.php(9): the_content() #24 /home/beatrizcueto/public_html/wp-includes/template.php(787): require('...') #25 /home/beatrizcueto/public_html/wp-includes/template.php(720): load_template() #26 /home/beatrizcueto/public_html/wp-includes/general-template.php(206): locate_template() #27 /home/beatrizcueto/public_html/wp-content/themes/ms-lms-starter-theme/index.php(4): get_template_part() #28 /home/beatrizcueto/public_html/wp-includes/template-loader.php(106): include('...') #29 /home/beatrizcueto/public_html/wp-blog-header.php(19): require_once('...') #30 /home/beatrizcueto/public_html/index.php(17): require('...') #31 {main} thrown in /home/beatrizcueto/public_html/wp-content/plugins/masterstudy-lms-learning-management-system/_core/lms/classes/helpers.php on line 167