Fatal error: Uncaught Error: Call to undefined function mb_convert_encoding() in /var/www/html/wp-content/plugins/email-before-download/includes/class-email-before-download-form.php:35 Stack trace: #0 /var/www/html/wp-content/plugins/email-before-download/includes/class-email-before-download-shortcode.php(68): Email_Before_Download_Form->html() #1 /var/www/html/wp-includes/shortcodes.php(343): Email_Before_Download_Shortcode->init_shortcode(Array, '', 'email-download') #2 [internal function]: do_shortcode_tag(Array) #3 /var/www/html/wp-includes/shortcodes.php(218): preg_replace_callback('/\\[(\\[?)(email\\...', 'do_shortcode_ta...', '[email-download...') #4 /var/www/html/wp-includes/class-wp-hook.php(287): do_shortcode('[email-download...') #5 /var/www/html/wp-includes/plugin.php(206): WP_Hook->apply_filters('[email-download...', Array) #6 /var/www/html/wp-includes/post-template.php(253): apply_filters('the_content', '[email-download...') #7 /var/www/html/wp-content/themes/pbgnetworks/page.php(14): the_content() #8 /var/w in /var/www/html/wp-content/plugins/email-before-download/includes/class-email-before-download-form.php on line 35