bool(true)

Warning: Undefined variable $shortcode_content in /var/www/project/web/app/plugins/pdf-print-pro/pdf-print-pro.php on line 4302
NULL

Warning: Undefined variable $shortcode_content in /var/www/project/web/app/plugins/pdf-print-pro/pdf-print-pro.php on line 4306

Warning: foreach() argument must be of type array|object, bool given in /var/www/project/web/app/plugins/pdf-print-pro/pdf-print-pro.php on line 4308

Fatal error: Uncaught Mpdf\MpdfException: Data has already been sent to output (/var/www/project/web/app/plugins/pdf-print-pro/pdf-print-pro.php at line 4301), unable to output PDF file in /var/www/project/web/app/plugins/pdf-print-pro/vendor/mpdf/mpdf/src/Mpdf.php:9512
Stack trace:
#0 /var/www/project/web/app/plugins/pdf-print-pro/pdf-print-pro.php(2530): Mpdf\Mpdf->Output('kulttuuriala-ti...', 'I')
#1 /var/www/project/web/wp/wp-includes/class-wp-hook.php(324): pdfprnt_print(Object(WP))
#2 /var/www/project/web/wp/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters(NULL, Array)
#3 /var/www/project/web/wp/wp-includes/plugin.php(565): WP_Hook->do_action(Array)
#4 /var/www/project/web/wp/wp-includes/class-wp.php(835): do_action_ref_array('wp', Array)
#5 /var/www/project/web/wp/wp-includes/functions.php(1342): WP->main('')
#6 /var/www/project/web/wp/wp-blog-header.php(16): wp()
#7 /var/www/project/web/index.php(10): require('/var/www/projec...')
#8 {main}
  thrown in /var/www/project/web/app/plugins/pdf-print-pro/vendor/mpdf/mpdf/src/Mpdf.php on line 9512