Fatal error: Uncaught exception 'MpdfException' with message 'Invalid page format: ' in /home/invspro/public_html/wp-content/plugins/pdf-print/mpdf/mpdf.php:1390 Stack trace: #0 /home/invspro/public_html/wp-content/plugins/pdf-print/mpdf/mpdf.php(1104): mPDF->_setPageSize(NULL, 'P') #1 /home/invspro/public_html/wp-content/plugins/pdf-print/pdf-print.php(988): mPDF->__construct('+aCJK', NULL, 0, 'dejavusansmono', '15', '15', '16', '16') #2 [internal function]: pdfprnt_print(Object(WP)) #3 /home/invspro/public_html/wp-includes/class-wp-hook.php(286): call_user_func_array('pdfprnt_print', Array) #4 /home/invspro/public_html/wp-includes/class-wp-hook.php(310): WP_Hook->apply_filters('', Array) #5 /home/invspro/public_html/wp-includes/plugin.php(515): WP_Hook->do_action(Array) #6 /home/invspro/public_html/wp-includes/class-wp.php(726): do_action_ref_array('wp', Array) #7 /home/invspro/public_html/wp-includes/functions.php(960): WP->main('') #8 /home/invspro/public_html/wp-blog-header.php(16): wp() #9 /home/invspro/public_html in /home/invspro/public_html/wp-content/plugins/pdf-print/mpdf/mpdf.php on line 1390