Fatal Error

Hi there. Plugin is producing a crtitical error. Pls see error logs:

[08-Nov-2023 08:55:07 UTC] PHP Fatal error: Uncaught Error: Call to undefined function Dompdf\mb_internal_encoding() in /home/lemosola/public_html/wp-content/plugins/pdf-catalog-woocommerce/dompdf-master/src/Dompdf.php:274
Stack trace: 0 /home/lemosola/public_html/wp-content/plugins/pdf-catalog-woocommerce/includes/GMWCP_PDF.php(34): Dompdf\Dompdf->__construct() 1 /home/lemosola/public_html/wp-includes/class-wp-hook.php(308): GMWCP_PDF->woo_comman_single_button() 2 /home/lemosola/public_html/wp-includes/class-wp-hook.php(332): WP_Hook->apply_filters() 3 /home/lemosola/public_html/wp-includes/plugin.php(517): WP_Hook->do_action() 4 /home/lemosola/public_html/wp-settings.php(623): do_action() 5 /home/lemosola/public_html/wp-config.php(96): require_once(‘/home/lemosola/…’) 6 /home/lemosola/public_html/wp-load.php(50): require_once(‘/home/lemosola/…’) 7 /home/lemosola/public_html/wp-blog-header.php(13): require_once(‘/home/lemosola/…’) 8 /home/lemosola/public_html/index.php(17): require(‘/home/lemosola/…’) 9 {main}

thrown in /home/lemosola/public_html/wp-content/plugins/pdf-catalog-woocommerce/dompdf-master/src/Dompdf.php on line 274

Thank you for your help!