Fatal error: Uncaught Error: Call to a member function innerHtml() on null in /var/www/wp/src/wp-content/themes/hello/class/system/HLTheme.php:300 Stack trace: #0 /var/www/wp/src/wp-includes/class-wp-hook.php(324): HLTheme::filterHtml() #1 /var/www/wp/src/wp-includes/plugin.php(205): WP_Hook->apply_filters() #2 /var/www/wp/src/wp-includes/formatting.php(3965): apply_filters() #3 /var/www/wp/src/wp-includes/class-wp-hook.php(324): wp_trim_excerpt() #4 /var/www/wp/src/wp-includes/plugin.php(205): WP_Hook->apply_filters() #5 /var/www/wp/src/wp-includes/post-template.php(436): apply_filters() #6 /var/www/wp/src/wp-content/plugins/seo-by-rank-math/includes/opengraph/class-opengraph.php(148): get_the_excerpt() #7 /var/www/wp/src/wp-content/plugins/seo-by-rank-math/includes/opengraph/class-opengraph.php(125): RankMath\OpenGraph\OpenGraph->fallback_description() #8 /var/www/wp/src/wp-content/plugins/seo-by-rank-math/includes/opengraph/class-facebook.php(200): RankMath\OpenGraph\OpenGraph->get_description() #9 /var/www/wp/src/wp-includes/class-wp-hook.php(324): RankMath\OpenGraph\Facebook->description() #10 /var/www/wp/src/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters() #11 /var/www/wp/src/wp-includes/plugin.php(565): WP_Hook->do_action() #12 /var/www/wp/src/wp-content/plugins/seo-by-rank-math/includes/traits/class-hooker.php(90): do_action_ref_array() #13 /var/www/wp/src/wp-content/plugins/seo-by-rank-math/includes/opengraph/class-opengraph.php(74): RankMath\OpenGraph\OpenGraph->do_action() #14 /var/www/wp/src/wp-includes/class-wp-hook.php(324): RankMath\OpenGraph\OpenGraph->output_tags() #15 /var/www/wp/src/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters() #16 /var/www/wp/src/wp-includes/plugin.php(565): WP_Hook->do_action() #17 /var/www/wp/src/wp-content/plugins/seo-by-rank-math/includes/traits/class-hooker.php(90): do_action_ref_array() #18 /var/www/wp/src/wp-content/plugins/seo-by-rank-math/includes/frontend/class-head.php(180): RankMath\Frontend\Head->do_action() #19 /var/www/wp/src/wp-includes/class-wp-hook.php(324): RankMath\Frontend\Head->head() #20 /var/www/wp/src/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters() #21 /var/www/wp/src/wp-includes/plugin.php(517): WP_Hook->do_action() #22 /var/www/wp/src/wp-includes/general-template.php(3064): do_action() #23 /var/www/wp/src/wp-content/themes/hello/header.php(25): wp_head() #24 /var/www/wp/src/wp-includes/template.php(810): require_once('...') #25 /var/www/wp/src/wp-includes/template.php(745): load_template() #26 /var/www/wp/src/wp-includes/general-template.php(48): locate_template() #27 /var/www/wp/src/wp-content/themes/hello/single-magazine.php(3): get_header() #28 /var/www/wp/src/wp-includes/template-loader.php(106): include('...') #29 /var/www/wp/src/wp-blog-header.php(19): require_once('...') #30 /var/www/wp/src/index.php(17): require('...') #31 {main} thrown in /var/www/wp/src/wp-content/themes/hello/class/system/HLTheme.php on line 300