Conflict with plugin WooCommerce PDF Invoices & Packing Slips

[xllentech]

When your plugin is activated, it breaks above plugin PDF creation with following error. It's PDF library conflict. Gets following error:

Fatal error: Call to protected method Cpdf::getFirstPageId() from context 'Dompdf\Adapter\CPDF'

#0 root-folder/wp-content/plugins/woocommerce-pdf-invoices-packing-slips/vendor/dompdf/dompdf/src/CanvasFactory.php(57): Dompdf\Adapter\CPDF->__construct('letter', 'portrait', Object(Dompdf\Dompdf))
#1 root-folder/wp-content/plugins/woocommerce-pdf-invoices-packing-slips/vendor/dompdf/dompdf/src/Dompdf.php(299): Dompdf\CanvasFactory::get_instance(Object(Dompdf\Dompdf), 'letter', 'portrait')
#2 root-folder/wp-content/plugins/woocommerce-pdf-invoices-packing-slips/includes/class-wcpdf-pdf-maker.php(49): Dompdf\Dompdf->__construct(Object(Dompdf\Options))
#3 root-folder/wp-content/plugins/woocommerce-pdf-invoices-packing-slips/includes/documents/abstract-wcpdf-order-document.php(625): WPO\WC\PDF_Invoices\PDF_Maker->output()
#4 root-folder/wp-content/plugins/woocommerce-pdf-invoices-packing-slips/includes/documents/abstract-wcpdf-order-document.php(660): WPO\WC\PDF_Invoices\Documents\Order_Document->get_pdf()
#5 root-folder/wp-content/plugins/woocommerce-pdf-invoices-packing-slips/includes/class-wcpdf-main.php(337): WPO\WC\PDF_Invoices\Documents\Order_Document->output_pdf('inline')
#6 root-folder/wp-includes/class-wp-hook.php(288): WPO\WC\PDF_Invoices\Main->generate_pdf_ajax('')
#7 root-folder/wp-includes/class-wp-hook.php(312): WP_Hook->apply_filters('', Array)
#8 root-folder/wp-includes/plugin.php(478): WP_Hook->do_action(Array)
#9 root-folder/wp-admin/admin-ajax.php(175): do_action('wp_ajax_generat...')
#10 {main}

When I deactivate this plugin WC Recurring Invoice PDF, PDF creation works fine on the other plugin. Can you help if there is a way to make it work together. Thank you for your great plugin.