Fatal error: Uncaught Mpdf\MpdfException: Data has already been sent to output, unable to output PDF file in /home/web2cowi/public_html/wp-content/plugins/dk-pdf/vendor/mpdf/mpdf/src/Mpdf.php:9292 Stack trace: #0 /home/web2cowi/public_html/wp-content/plugins/dk-pdf/includes/dkpdf-functions.php(212): Mpdf\Mpdf->Output('Dioscorus I.pdf', 'I') #1 /home/web2cowi/public_html/wp-includes/class-wp-hook.php(308): dkpdf_output_pdf(Object(WP)) #2 /home/web2cowi/public_html/wp-includes/class-wp-hook.php(332): WP_Hook->apply_filters(NULL, Array) #3 /home/web2cowi/public_html/wp-includes/plugin.php(571): WP_Hook->do_action(Array) #4 /home/web2cowi/public_html/wp-includes/class-wp.php(797): do_action_ref_array('wp', Array) #5 /home/web2cowi/public_html/wp-includes/functions.php(1332): WP->main('') #6 /home/web2cowi/public_html/wp-blog-header.php(16): wp() #7 /home/web2cowi/public_html/index.php(192): require('/home/web2cowi/...') #8 {main} thrown in /home/web2cowi/public_html/wp-content/plugins/dk-pdf/vendor/mpdf/mpdf/src/Mpdf.php on line 9292