Fatal error: Uncaught Mpdf\MpdfException: WriteHTML() requires $html be an integer, float, string, boolean or an object with the __toString() magic method. in /home/users/supron/public_html/supron.pl/vendor/mpdf/mpdf/src/Mpdf.php:14734
Stack trace:
#0 /home/users/supron/public_html/supron.pl/wp-content/themes/suprontheme/pdf-product.php(672): Mpdf\Mpdf->WriteHTML(NULL)
#1 /home/users/supron/public_html/supron.pl/wp-content/themes/suprontheme/inc/additional.php(287): include('/home/users/sup...')
#2 /home/users/supron/public_html/supron.pl/wp-includes/class-wp-hook.php(307): generate_data_sheet_file('')
#3 /home/users/supron/public_html/supron.pl/wp-includes/class-wp-hook.php(331): WP_Hook->apply_filters(NULL, Array)
#4 /home/users/supron/public_html/supron.pl/wp-includes/plugin.php(476): WP_Hook->do_action(Array)
#5 /home/users/supron/public_html/supron.pl/wp-includes/template-loader.php(13): do_action('template_redire...')
#6 /home/users/supron/public_html/supron.pl/wp-blog-header.php(19): require_once('/home/users/sup.. in /home/users/supron/public_html/supron.pl/vendor/mpdf/mpdf/src/Mpdf.php on line 14734
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