Fatal error: Uncaught ValueError: mb_convert_encoding(): Argument #3 ($from_encoding) must specify at least one encoding in /home/bldvmugb/owen.majik-web.co.uk/wp-content/plugins/pb-seo-friendly-images/inc/pbsfi_optimizer.php:253 Stack trace: #0 /home/bldvmugb/owen.majik-web.co.uk/wp-content/plugins/pb-seo-friendly-images/inc/pbsfi_optimizer.php(253): mb_convert_encoding() #1 /home/bldvmugb/owen.majik-web.co.uk/wp-content/plugins/pb-seo-friendly-images/inc/pbsfi_frontend.php(111): pbsfi_optimizer->optimize_html() #2 /home/bldvmugb/owen.majik-web.co.uk/wp-includes/class-wp-hook.php(307): pbsfi_frontend->optimize_html() #3 /home/bldvmugb/owen.majik-web.co.uk/wp-includes/plugin.php(191): WP_Hook->apply_filters() #4 /home/bldvmugb/owen.majik-web.co.uk/wp-includes/formatting.php(3877): apply_filters() #5 /home/bldvmugb/owen.majik-web.co.uk/wp-includes/class-wp-hook.php(307): wp_trim_excerpt() #6 /home/bldvmugb/owen.majik-web.co.uk/wp-includes/plugin.php(191): WP_Hook->apply_filters() #7 /home/bldvmugb/owen.majik-web.co.uk/wp-includes/post-template.php(429): apply_filters() #8 /home/bldvmugb/owen.majik-web.co.uk/wp-content/plugins/wordpress-seo/src/helpers/post-helper.php(72): get_the_excerpt() #9 /home/bldvmugb/owen.majik-web.co.uk/wp-content/plugins/wordpress-seo/src/presentations/indexable-post-type-presentation.php(196): Yoast\WP\SEO\Helpers\Post_Helper->get_the_excerpt() #10 /home/bldvmugb/owen.majik-web.co.uk/wp-content/plugins/wordpress-seo/src/presentations/abstract-presentation.php(64): Yoast\WP\SEO\Presentations\Indexable_Post_Type_Presentation->generate_open_graph_description() #11 /home/bldvmugb/owen.majik-web.co.uk/wp-content/plugins/wordpress-seo/src/presenters/open-graph/description-presenter.php(40): Yoast\WP\SEO\Presentations\Abstract_Presentation->__get() #12 /home/bldvmugb/owen.majik-web.co.uk/wp-content/plugins/wordpress-seo/src/presenters/abstract-indexable-tag-presenter.php(37): Yoast\WP\SEO\Presenters\Open_Graph\Description_Presenter->get() #13 /home/bldvmugb/owen.majik-web.co.uk/wp-content/plugins/wordpress-seo/src/integrations/front-end-integration.php(324): Yoast\WP\SEO\Presenters\Abstract_Indexable_Tag_Presenter->present() #14 /home/bldvmugb/owen.majik-web.co.uk/wp-includes/class-wp-hook.php(307): Yoast\WP\SEO\Integrations\Front_End_Integration->present_head() #15 /home/bldvmugb/owen.majik-web.co.uk/wp-includes/class-wp-hook.php(331): WP_Hook->apply_filters() #16 /home/bldvmugb/owen.majik-web.co.uk/wp-includes/plugin.php(476): WP_Hook->do_action() #17 /home/bldvmugb/owen.majik-web.co.uk/wp-content/plugins/wordpress-seo/src/integrations/front-end-integration.php(298): do_action() #18 /home/bldvmugb/owen.majik-web.co.uk/wp-includes/class-wp-hook.php(307): Yoast\WP\SEO\Integrations\Front_End_Integration->call_wpseo_head() #19 /home/bldvmugb/owen.majik-web.co.uk/wp-includes/class-wp-hook.php(331): WP_Hook->apply_filters() #20 /home/bldvmugb/owen.majik-web.co.uk/wp-includes/plugin.php(476): WP_Hook->do_action() #21 /home/bldvmugb/owen.majik-web.co.uk/wp-includes/general-template.php(3042): do_action() #22 /home/bldvmugb/owen.majik-web.co.uk/wp-content/themes/owen/header.php(20): wp_head() #23 /home/bldvmugb/owen.majik-web.co.uk/wp-includes/template.php(770): require_once('/home/bldvmugb/...') #24 /home/bldvmugb/owen.majik-web.co.uk/wp-includes/template.php(716): load_template() #25 /home/bldvmugb/owen.majik-web.co.uk/wp-includes/general-template.php(48): locate_template() #26 /home/bldvmugb/owen.majik-web.co.uk/wp-content/themes/owen/single.php(1): get_header() #27 /home/bldvmugb/owen.majik-web.co.uk/wp-includes/template-loader.php(106): include('/home/bldvmugb/...') #28 /home/bldvmugb/owen.majik-web.co.uk/wp-blog-header.php(19): require_once('/home/bldvmugb/...') #29 /home/bldvmugb/owen.majik-web.co.uk/index.php(17): require('/home/bldvmugb/...') #30 {main} thrown in /home/bldvmugb/owen.majik-web.co.uk/wp-content/plugins/pb-seo-friendly-images/inc/pbsfi_optimizer.php on line 253