Fatal error: Uncaught Error: Call to undefined function AdvancedAds\Utilities\mb_strpos() in /home/thecitym/public_html/wp-content/plugins/advanced-ads/includes/utilities/class-conditional.php:197 Stack trace: #0 /home/thecitym/public_html/wp-content/plugins/advanced-ads/public/class-advanced-ads.php(304): AdvancedAds\Utilities\Conditional::is_gutenberg_writing_request() #1 /home/thecitym/public_html/wp-includes/class-wp-hook.php(324): Advanced_Ads->inject_content('\n<p>The blue-fe...') #2 /home/thecitym/public_html/wp-includes/plugin.php(205): WP_Hook->apply_filters('\n<p>The blue-fe...', Array) #3 /home/thecitym/public_html/wp-content/plugins/elementor-pro/modules/posts/skins/skin-content-base.php(281): apply_filters('the_content', '<!-- wp:paragra...') #4 /home/thecitym/public_html/wp-content/plugins/elementor-pro/modules/theme-builder/widgets/post-content.php(112): ElementorPro\Modules\ThemeBuilder\Widgets\Post_Content->render_post_content(false, false) #5 /home/thecitym/public_html/wp-content/plugins/elementor/includes/base/controls-stack.php(2374): ElementorPro\Modules\ThemeBuilder\Widgets\Post_Content->render() #6 /home/thecitym/public_html/wp-content/plugins/elementor/includes/base/widget-base.php(636): Elementor\Controls_Stack->render_by_mode() #7 /home/thecitym/public_html/wp-content/plugins/elementor/includes/base/widget-base.php(774): Elementor\Widget_Base->render_content() #8 /home/thecitym/public_html/wp-content/plugins/elementor/includes/base/element-base.php(492): Elementor\Widget_Base->print_content() #9 /home/thecitym/public_html/wp-content/plugins/elementor/modules/element-cache/module.php(71): Elementor\Element_Base->print_element() #10 /home/thecitym/public_html/wp-includes/shortcodes.php(434): Elementor\Modules\ElementCache\Module->Elementor\Modules\ElementCache\{closure}(Array, '', 'elementor-eleme...') #11 [internal function]: do_shortcode_tag(Array) #12 /home/thecitym/public_html/wp-includes/shortcodes.php(273): preg_replace_callback('/\\[(\\[?)(elemen...', 'do_shortcode_ta...', '<div class="ele...') #13 /home/thecitym/public_html/wp-content/plugins/elementor/core/base/document.php(1868): do_shortcode('<div class="ele...') #14 /home/thecitym/public_html/wp-content/plugins/elementor-pro/modules/theme-builder/documents/theme-document.php(466): Elementor\Core\Base\Document->print_elements(Array) #15 /home/thecitym/public_html/wp-content/plugins/elementor/includes/frontend.php(1172): ElementorPro\Modules\ThemeBuilder\Documents\Theme_Document->print_elements_with_wrapper(Array) #16 /home/thecitym/public_html/wp-content/plugins/elementor/core/base/document.php(1249): Elementor\Frontend->get_builder_content(28, false) #17 /home/thecitym/public_html/wp-content/plugins/elementor/modules/library/documents/library-document.php(82): Elementor\Core\Base\Document->get_content(false) #18 /home/thecitym/public_html/wp-content/plugins/elementor-pro/modules/theme-builder/documents/theme-document.php(167): Elementor\Modules\Library\Documents\Library_Document->get_content(false) #19 /home/thecitym/public_html/wp-content/plugins/elementor-pro/modules/theme-builder/documents/theme-document.php(182): ElementorPro\Modules\ThemeBuilder\Documents\Theme_Document->get_content() #20 /home/thecitym/public_html/wp-content/plugins/elementor-pro/modules/theme-builder/documents/single-base.php(100): ElementorPro\Modules\ThemeBuilder\Documents\Theme_Document->print_content() #21 /home/thecitym/public_html/wp-content/plugins/elementor-pro/modules/theme-builder/classes/locations-manager.php(438): ElementorPro\Modules\ThemeBuilder\Documents\Single_Base->print_content() #22 /home/thecitym/public_html/wp-content/plugins/elementor-pro/modules/theme-builder/api.php(13): ElementorPro\Modules\ThemeBuilder\Classes\Locations_Manager->do_location('single') #23 /home/thecitym/public_html/wp-content/themes/hello-elementor/index.php(19): elementor_theme_do_location('single') #24 /home/thecitym/public_html/wp-includes/template-loader.php(106): include('/home/thecitym/...') #25 /home/thecitym/public_html/wp-blog-header.php(19): require_once('/home/thecitym/...') #26 /home/thecitym/public_html/index.php(17): require('/home/thecitym/...') #27 {main} thrown in /home/thecitym/public_html/wp-content/plugins/advanced-ads/includes/utilities/class-conditional.php on line 197