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( ! ) Warning: Attempt to read property "term_id" on null in /var/home/zaffinstitute/public_html/wp-content/themes/courselog/components/editor/elementor/widgets/style/course-category/grid3.php on line 36
Call Stack
#TimeMemoryFunctionLocation
10.0003361000{main}( ).../index.php:0
20.0004361312require( '/var/home/zaffinstitute/public_html/wp-blog-header.php ).../index.php:17
30.378016214328require_once( '/var/home/zaffinstitute/public_html/wp-includes/template-loader.php ).../wp-blog-header.php:19
40.380716227072include( '/var/home/zaffinstitute/public_html/wp-content/themes/courselog/template/homepage-template.php ).../template-loader.php:106
50.935322411792the_content( $more_link_text = ???, $strip_teaser = ??? ).../homepage-template.php:9
60.935522411792apply_filters( $hook_name = 'the_content', $value = '<h3>The Leader in Online Learning</h3><h2>\n\t\t\t\t\tSimple and Interactive Online Programming Learning\n\t\t\t\t</h2>\t\t\n <a href="#">\n View all course </a>\n <a href="#">\n Start free trail </a>\n\t\t<p>Learn new skills online and change your life</p>\t\t\n\t\t\t\t\t\t\t<a href="#" >\n\t\t\t\t\tSign up now.\t\t\t\t</a>\n\t\t\t<h3>Browse Categories</h3><h2>\n\t\t\t\t\tPopular Topics to Lea' ).../post-template.php:253
70.935522412200WP_Hook->apply_filters( $value = '<h3>The Leader in Online Learning</h3><h2>\n\t\t\t\t\tSimple and Interactive Online Programming Learning\n\t\t\t\t</h2>\t\t\n <a href="#">\n View all course </a>\n <a href="#">\n Start free trail </a>\n\t\t<p>Learn new skills online and change your life</p>\t\t\n\t\t\t\t\t\t\t<a href="#" >\n\t\t\t\t\tSign up now.\t\t\t\t</a>\n\t\t\t<h3>Browse Categories</h3><h2>\n\t\t\t\t\tPopular Topics to Lea', $args = [0 => '<h3>The Leader in Online Learning</h3><h2>\n\t\t\t\t\tSimple and Interactive Online Programming Learning\n\t\t\t\t</h2>\t\t\n <a href="#">\n View all course </a>\n <a href="#">\n Start free trail </a>\n\t\t<p>Learn new skills online and change your life</p>\t\t\n\t\t\t\t\t\t\t<a href="#" >\n\t\t\t\t\tSign up now.\t\t\t\t</a>\n\t\t\t<h3>Browse Categories</h3><h2>\n\t\t\t\t\tPopular Topics to Lea'] ).../plugin.php:191
80.939222462136Elementor\Frontend->apply_builder_in_content( $content = '<h3>The Leader in Online Learning</h3><h2>\n\t\t\t\t\tSimple and Interactive Online Programming Learning\n\t\t\t\t</h2>\t\t\n <a href="#">\n View all course </a>\n <a href="#">\n Start free trail </a>\n\t\t<p>Learn new skills online and change your life</p>\t\t\n\t\t\t\t\t\t\t<a href="#" >\n\t\t\t\t\tSign up now.\t\t\t\t</a>\n\t\t\t<h3>Browse Categories</h3><h2>\n\t\t\t\t\tPopular Topics to Lea' ).../class-wp-hook.php:307
90.939222462512Elementor\Frontend->get_builder_content( $post_id = 9136, $with_css = ??? ).../frontend.php:1006
100.940623039320Elementor\Core\DocumentTypes\Page->print_elements_with_wrapper( $elements_data = [0 => ['id' => 'e6b974b', 'elType' => 'section', 'settings' => [...], 'elements' => [...], 'isInner' => FALSE], 1 => ['id' => 'c02db07', 'elType' => 'section', 'settings' => [...], 'elements' => [...], 'isInner' => FALSE], 2 => ['id' => '3e4b213', 'elType' => 'section', 'settings' => [...], 'elements' => [...], 'isInner' => FALSE], 3 => ['id' => 'e331f2b', 'elType' => 'section', 'settings' => [...], 'elements' => [...], 'isInner' => FALSE], 4 => ['id' => '17ce20a', 'elType' => 'section', 'settings' => [...], 'elements' => [...], 'isInner' => FALSE], 5 => ['id' => '2688197', 'elType' => 'section', 'settings' => [...], 'elements' => [...], 'isInner' => FALSE], 6 => ['id' => '13c63d2', 'elType' => 'section', 'settings' => [...], 'elements' => [...], 'isInner' => FALSE], 7 => ['id' => '5b65026', 'elType' => 'section', 'settings' => [...], 'elements' => [...], 'isInner' => FALSE], 8 => ['id' => '0cfb36f', 'elType' => 'section', 'settings' => [...], 'elements' => [...], 'isInner' => FALSE], 9 => ['id' => '28065d7', 'elType' => 'section', 'settings' => [...], 'elements' => [...], 'isInner' => FALSE], 10 => ['id' => '2fcebfa', 'elType' => 'section', 'settings' => [...], 'elements' => [...], 'isInner' => FALSE]] ).../frontend.php:1092
110.942123053032Elementor\Core\DocumentTypes\Page->print_elements( $elements_data = [0 => ['id' => 'e6b974b', 'elType' => 'section', 'settings' => [...], 'elements' => [...], 'isInner' => FALSE], 1 => ['id' => 'c02db07', 'elType' => 'section', 'settings' => [...], 'elements' => [...], 'isInner' => FALSE], 2 => ['id' => '3e4b213', 'elType' => 'section', 'settings' => [...], 'elements' => [...], 'isInner' => FALSE], 3 => ['id' => 'e331f2b', 'elType' => 'section', 'settings' => [...], 'elements' => [...], 'isInner' => FALSE], 4 => ['id' => '17ce20a', 'elType' => 'section', 'settings' => [...], 'elements' => [...], 'isInner' => FALSE], 5 => ['id' => '2688197', 'elType' => 'section', 'settings' => [...], 'elements' => [...], 'isInner' => FALSE], 6 => ['id' => '13c63d2', 'elType' => 'section', 'settings' => [...], 'elements' => [...], 'isInner' => FALSE], 7 => ['id' => '5b65026', 'elType' => 'section', 'settings' => [...], 'elements' => [...], 'isInner' => FALSE], 8 => ['id' => '0cfb36f', 'elType' => 'section', 'settings' => [...], 'elements' => [...], 'isInner' => FALSE], 9 => ['id' => '28065d7', 'elType' => 'section', 'settings' => [...], 'elements' => [...], 'isInner' => FALSE], 10 => ['id' => '2fcebfa', 'elType' => 'section', 'settings' => [...], 'elements' => [...], 'isInner' => FALSE]] ).../document.php:1086
121.181725235592Elementor\Element_Section->print_element( ).../document.php:1635
131.181725252104Elementor\Element_Section->print_content( ).../element-base.php:447
141.181725253560Elementor\Element_Column->print_element( ).../element-base.php:787
151.181825270072Elementor\Element_Column->print_content( ).../element-base.php:447
161.238225525512Elementor\Courselog_Course_category_Widget->print_element( ).../element-base.php:787
171.238225542024Elementor\Courselog_Course_category_Widget->print_content( ).../element-base.php:447
181.238225542024Elementor\Courselog_Course_category_Widget->render_content( ).../widget-base.php:750
191.251725856976Elementor\Courselog_Course_category_Widget->render_by_mode( ).../widget-base.php:609
201.251725856976Elementor\Courselog_Course_category_Widget->render( ).../controls-stack.php:2254
211.251825858656include( '/var/home/zaffinstitute/public_html/wp-content/themes/courselog/components/editor/elementor/widgets/style/course-category/grid3.php ).../course-category.php:431

( ! ) Warning: Attempt to read property "slug" on null in /var/home/zaffinstitute/public_html/wp-content/themes/courselog/components/editor/elementor/widgets/style/course-category/grid3.php on line 45
Call Stack
#TimeMemoryFunctionLocation
10.0003361000{main}( ).../index.php:0
20.0004361312require( '/var/home/zaffinstitute/public_html/wp-blog-header.php ).../index.php:17
30.378016214328require_once( '/var/home/zaffinstitute/public_html/wp-includes/template-loader.php ).../wp-blog-header.php:19
40.380716227072include( '/var/home/zaffinstitute/public_html/wp-content/themes/courselog/template/homepage-template.php ).../template-loader.php:106
50.935322411792the_content( $more_link_text = ???, $strip_teaser = ??? ).../homepage-template.php:9
60.935522411792apply_filters( $hook_name = 'the_content', $value = '<h3>The Leader in Online Learning</h3><h2>\n\t\t\t\t\tSimple and Interactive Online Programming Learning\n\t\t\t\t</h2>\t\t\n <a href="#">\n View all course </a>\n <a href="#">\n Start free trail </a>\n\t\t<p>Learn new skills online and change your life</p>\t\t\n\t\t\t\t\t\t\t<a href="#" >\n\t\t\t\t\tSign up now.\t\t\t\t</a>\n\t\t\t<h3>Browse Categories</h3><h2>\n\t\t\t\t\tPopular Topics to Lea' ).../post-template.php:253
70.935522412200WP_Hook->apply_filters( $value = '<h3>The Leader in Online Learning</h3><h2>\n\t\t\t\t\tSimple and Interactive Online Programming Learning\n\t\t\t\t</h2>\t\t\n <a href="#">\n View all course </a>\n <a href="#">\n Start free trail </a>\n\t\t<p>Learn new skills online and change your life</p>\t\t\n\t\t\t\t\t\t\t<a href="#" >\n\t\t\t\t\tSign up now.\t\t\t\t</a>\n\t\t\t<h3>Browse Categories</h3><h2>\n\t\t\t\t\tPopular Topics to Lea', $args = [0 => '<h3>The Leader in Online Learning</h3><h2>\n\t\t\t\t\tSimple and Interactive Online Programming Learning\n\t\t\t\t</h2>\t\t\n <a href="#">\n View all course </a>\n <a href="#">\n Start free trail </a>\n\t\t<p>Learn new skills online and change your life</p>\t\t\n\t\t\t\t\t\t\t<a href="#" >\n\t\t\t\t\tSign up now.\t\t\t\t</a>\n\t\t\t<h3>Browse Categories</h3><h2>\n\t\t\t\t\tPopular Topics to Lea'] ).../plugin.php:191
80.939222462136Elementor\Frontend->apply_builder_in_content( $content = '<h3>The Leader in Online Learning</h3><h2>\n\t\t\t\t\tSimple and Interactive Online Programming Learning\n\t\t\t\t</h2>\t\t\n <a href="#">\n View all course </a>\n <a href="#">\n Start free trail </a>\n\t\t<p>Learn new skills online and change your life</p>\t\t\n\t\t\t\t\t\t\t<a href="#" >\n\t\t\t\t\tSign up now.\t\t\t\t</a>\n\t\t\t<h3>Browse Categories</h3><h2>\n\t\t\t\t\tPopular Topics to Lea' ).../class-wp-hook.php:307
90.939222462512Elementor\Frontend->get_builder_content( $post_id = 9136, $with_css = ??? ).../frontend.php:1006
100.940623039320Elementor\Core\DocumentTypes\Page->print_elements_with_wrapper( $elements_data = [0 => ['id' => 'e6b974b', 'elType' => 'section', 'settings' => [...], 'elements' => [...], 'isInner' => FALSE], 1 => ['id' => 'c02db07', 'elType' => 'section', 'settings' => [...], 'elements' => [...], 'isInner' => FALSE], 2 => ['id' => '3e4b213', 'elType' => 'section', 'settings' => [...], 'elements' => [...], 'isInner' => FALSE], 3 => ['id' => 'e331f2b', 'elType' => 'section', 'settings' => [...], 'elements' => [...], 'isInner' => FALSE], 4 => ['id' => '17ce20a', 'elType' => 'section', 'settings' => [...], 'elements' => [...], 'isInner' => FALSE], 5 => ['id' => '2688197', 'elType' => 'section', 'settings' => [...], 'elements' => [...], 'isInner' => FALSE], 6 => ['id' => '13c63d2', 'elType' => 'section', 'settings' => [...], 'elements' => [...], 'isInner' => FALSE], 7 => ['id' => '5b65026', 'elType' => 'section', 'settings' => [...], 'elements' => [...], 'isInner' => FALSE], 8 => ['id' => '0cfb36f', 'elType' => 'section', 'settings' => [...], 'elements' => [...], 'isInner' => FALSE], 9 => ['id' => '28065d7', 'elType' => 'section', 'settings' => [...], 'elements' => [...], 'isInner' => FALSE], 10 => ['id' => '2fcebfa', 'elType' => 'section', 'settings' => [...], 'elements' => [...], 'isInner' => FALSE]] ).../frontend.php:1092
110.942123053032Elementor\Core\DocumentTypes\Page->print_elements( $elements_data = [0 => ['id' => 'e6b974b', 'elType' => 'section', 'settings' => [...], 'elements' => [...], 'isInner' => FALSE], 1 => ['id' => 'c02db07', 'elType' => 'section', 'settings' => [...], 'elements' => [...], 'isInner' => FALSE], 2 => ['id' => '3e4b213', 'elType' => 'section', 'settings' => [...], 'elements' => [...], 'isInner' => FALSE], 3 => ['id' => 'e331f2b', 'elType' => 'section', 'settings' => [...], 'elements' => [...], 'isInner' => FALSE], 4 => ['id' => '17ce20a', 'elType' => 'section', 'settings' => [...], 'elements' => [...], 'isInner' => FALSE], 5 => ['id' => '2688197', 'elType' => 'section', 'settings' => [...], 'elements' => [...], 'isInner' => FALSE], 6 => ['id' => '13c63d2', 'elType' => 'section', 'settings' => [...], 'elements' => [...], 'isInner' => FALSE], 7 => ['id' => '5b65026', 'elType' => 'section', 'settings' => [...], 'elements' => [...], 'isInner' => FALSE], 8 => ['id' => '0cfb36f', 'elType' => 'section', 'settings' => [...], 'elements' => [...], 'isInner' => FALSE], 9 => ['id' => '28065d7', 'elType' => 'section', 'settings' => [...], 'elements' => [...], 'isInner' => FALSE], 10 => ['id' => '2fcebfa', 'elType' => 'section', 'settings' => [...], 'elements' => [...], 'isInner' => FALSE]] ).../document.php:1086
121.181725235592Elementor\Element_Section->print_element( ).../document.php:1635
131.181725252104Elementor\Element_Section->print_content( ).../element-base.php:447
141.181725253560Elementor\Element_Column->print_element( ).../element-base.php:787
151.181825270072Elementor\Element_Column->print_content( ).../element-base.php:447
161.238225525512Elementor\Courselog_Course_category_Widget->print_element( ).../element-base.php:787
171.238225542024Elementor\Courselog_Course_category_Widget->print_content( ).../element-base.php:447
181.238225542024Elementor\Courselog_Course_category_Widget->render_content( ).../widget-base.php:750
191.251725856976Elementor\Courselog_Course_category_Widget->render_by_mode( ).../widget-base.php:609
201.251725856976Elementor\Courselog_Course_category_Widget->render( ).../controls-stack.php:2254
211.251825858656include( '/var/home/zaffinstitute/public_html/wp-content/themes/courselog/components/editor/elementor/widgets/style/course-category/grid3.php ).../course-category.php:431

( ! ) Fatal error: Uncaught TypeError: ltrim(): Argument #1 ($string) must be of type string, WP_Error given in /var/home/zaffinstitute/public_html/wp-includes/formatting.php on line 4369 ( ! ) TypeError: ltrim(): Argument #1 ($string) must be of type string, WP_Error given in /var/home/zaffinstitute/public_html/wp-includes/formatting.php on line 4369 Call Stack #TimeMemoryFunctionLocation 10.0003361000{main}( ).../index.php:0 20.0004361312require( '/var/home/zaffinstitute/public_html/wp-blog-header.php ).../index.php:17 30.378016214328require_once( '/var/home/zaffinstitute/public_html/wp-includes/template-loader.php ).../wp-blog-header.php:19 40.380716227072include( '/var/home/zaffinstitute/public_html/wp-content/themes/courselog/template/homepage-template.php ).../template-loader.php:106 50.935322411792the_content( $more_link_text = ???, $strip_teaser = ??? ).../homepage-template.php:9 60.935522411792apply_filters( $hook_name = 'the_content', $value = '<h3>The Leader in Online Learning</h3><h2>\n\t\t\t\t\tSimple and Interactive Online Programming Learning\n\t\t\t\t</h2>\t\t\n <a href="#">\n View all course </a>\n <a href="#">\n Start free trail </a>\n\t\t<p>Learn new skills online and change your life</p>\t\t\n\t\t\t\t\t\t\t<a href="#" >\n\t\t\t\t\tSign up now.\t\t\t\t</a>\n\t\t\t<h3>Browse Categories</h3><h2>\n\t\t\t\t\tPopular Topics to Lea' ).../post-template.php:253 70.935522412200WP_Hook->apply_filters( $value = '<h3>The Leader in Online Learning</h3><h2>\n\t\t\t\t\tSimple and Interactive Online Programming Learning\n\t\t\t\t</h2>\t\t\n <a href="#">\n View all course </a>\n <a href="#">\n Start free trail </a>\n\t\t<p>Learn new skills online and change your life</p>\t\t\n\t\t\t\t\t\t\t<a href="#" >\n\t\t\t\t\tSign up now.\t\t\t\t</a>\n\t\t\t<h3>Browse Categories</h3><h2>\n\t\t\t\t\tPopular Topics to Lea', $args = [0 => '<h3>The Leader in Online Learning</h3><h2>\n\t\t\t\t\tSimple and Interactive Online Programming Learning\n\t\t\t\t</h2>\t\t\n <a href="#">\n View all course </a>\n <a href="#">\n Start free trail </a>\n\t\t<p>Learn new skills online and change your life</p>\t\t\n\t\t\t\t\t\t\t<a href="#" >\n\t\t\t\t\tSign up now.\t\t\t\t</a>\n\t\t\t<h3>Browse Categories</h3><h2>\n\t\t\t\t\tPopular Topics to Lea'] ).../plugin.php:191 80.939222462136Elementor\Frontend->apply_builder_in_content( $content = '<h3>The Leader in Online Learning</h3><h2>\n\t\t\t\t\tSimple and Interactive Online Programming Learning\n\t\t\t\t</h2>\t\t\n <a href="#">\n View all course </a>\n <a href="#">\n Start free trail </a>\n\t\t<p>Learn new skills online and change your life</p>\t\t\n\t\t\t\t\t\t\t<a href="#" >\n\t\t\t\t\tSign up now.\t\t\t\t</a>\n\t\t\t<h3>Browse Categories</h3><h2>\n\t\t\t\t\tPopular Topics to Lea' ).../class-wp-hook.php:307 90.939222462512Elementor\Frontend->get_builder_content( $post_id = 9136, $with_css = ??? ).../frontend.php:1006 100.940623039320Elementor\Core\DocumentTypes\Page->print_elements_with_wrapper( $elements_data = [0 => ['id' => 'e6b974b', 'elType' => 'section', 'settings' => [...], 'elements' => [...], 'isInner' => FALSE], 1 => ['id' => 'c02db07', 'elType' => 'section', 'settings' => [...], 'elements' => [...], 'isInner' => FALSE], 2 => ['id' => '3e4b213', 'elType' => 'section', 'settings' => [...], 'elements' => [...], 'isInner' => FALSE], 3 => ['id' => 'e331f2b', 'elType' => 'section', 'settings' => [...], 'elements' => [...], 'isInner' => FALSE], 4 => ['id' => '17ce20a', 'elType' => 'section', 'settings' => [...], 'elements' => [...], 'isInner' => FALSE], 5 => ['id' => '2688197', 'elType' => 'section', 'settings' => [...], 'elements' => [...], 'isInner' => FALSE], 6 => ['id' => '13c63d2', 'elType' => 'section', 'settings' => [...], 'elements' => [...], 'isInner' => FALSE], 7 => ['id' => '5b65026', 'elType' => 'section', 'settings' => [...], 'elements' => [...], 'isInner' => FALSE], 8 => ['id' => '0cfb36f', 'elType' => 'section', 'settings' => [...], 'elements' => [...], 'isInner' => FALSE], 9 => ['id' => '28065d7', 'elType' => 'section', 'settings' => [...], 'elements' => [...], 'isInner' => FALSE], 10 => ['id' => '2fcebfa', 'elType' => 'section', 'settings' => [...], 'elements' => [...], 'isInner' => FALSE]] ).../frontend.php:1092 110.942123053032Elementor\Core\DocumentTypes\Page->print_elements( $elements_data = [0 => ['id' => 'e6b974b', 'elType' => 'section', 'settings' => [...], 'elements' => [...], 'isInner' => FALSE], 1 => ['id' => 'c02db07', 'elType' => 'section', 'settings' => [...], 'elements' => [...], 'isInner' => FALSE], 2 => ['id' => '3e4b213', 'elType' => 'section', 'settings' => [...], 'elements' => [...], 'isInner' => FALSE], 3 => ['id' => 'e331f2b', 'elType' => 'section', 'settings' => [...], 'elements' => [...], 'isInner' => FALSE], 4 => ['id' => '17ce20a', 'elType' => 'section', 'settings' => [...], 'elements' => [...], 'isInner' => FALSE], 5 => ['id' => '2688197', 'elType' => 'section', 'settings' => [...], 'elements' => [...], 'isInner' => FALSE], 6 => ['id' => '13c63d2', 'elType' => 'section', 'settings' => [...], 'elements' => [...], 'isInner' => FALSE], 7 => ['id' => '5b65026', 'elType' => 'section', 'settings' => [...], 'elements' => [...], 'isInner' => FALSE], 8 => ['id' => '0cfb36f', 'elType' => 'section', 'settings' => [...], 'elements' => [...], 'isInner' => FALSE], 9 => ['id' => '28065d7', 'elType' => 'section', 'settings' => [...], 'elements' => [...], 'isInner' => FALSE], 10 => ['id' => '2fcebfa', 'elType' => 'section', 'settings' => [...], 'elements' => [...], 'isInner' => FALSE]] ).../document.php:1086 121.181725235592Elementor\Element_Section->print_element( ).../document.php:1635 131.181725252104Elementor\Element_Section->print_content( ).../element-base.php:447 141.181725253560Elementor\Element_Column->print_element( ).../element-base.php:787 151.181825270072Elementor\Element_Column->print_content( ).../element-base.php:447 161.238225525512Elementor\Courselog_Course_category_Widget->print_element( ).../element-base.php:787 171.238225542024Elementor\Courselog_Course_category_Widget->print_content( ).../element-base.php:447 181.238225542024Elementor\Courselog_Course_category_Widget->render_content( ).../widget-base.php:750 191.251725856976Elementor\Courselog_Course_category_Widget->render_by_mode( ).../widget-base.php:609 201.251725856976Elementor\Courselog_Course_category_Widget->render( ).../controls-stack.php:2254 211.251825858656include( '/var/home/zaffinstitute/public_html/wp-content/themes/courselog/components/editor/elementor/widgets/style/course-category/grid3.php ).../course-category.php:431 221.259225875984esc_url( $url = class WP_Error { public $errors = ['invalid_term' => [...]]; public $error_data = []; protected $additional_data = [] }, $protocols = ???, $_context = ??? ).../grid3.php:48 231.259225875984ltrim( $string = class WP_Error { public $errors = ['invalid_term' => [...]]; public $error_data = []; protected $additional_data = [] } ).../formatting.php:4369