Warning: Undefined variable $shortcode_content in /var/www/project/web/app/plugins/pdf-print-pro/pdf-print-pro.php on line 4305

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 4307

Fatal error: Uncaught Mpdf\MpdfException: Temporary files directory "/var/www/project/web/app/plugins/pdf-print-pro/vendor/mpdf/mpdf/src/Config/../../tmp" is not writable in /var/www/project/web/app/plugins/pdf-print-pro/vendor/mpdf/mpdf/src/Cache.php:17
Stack trace:
#0 /var/www/project/web/app/plugins/pdf-print-pro/vendor/mpdf/mpdf/src/ServiceFactory.php(59): Mpdf\Cache->__construct('/var/www/projec...')
#1 /var/www/project/web/app/plugins/pdf-print-pro/vendor/mpdf/mpdf/src/Mpdf.php(1062): Mpdf\ServiceFactory->getServices(Object(Mpdf\Mpdf), Object(Psr\Log\NullLogger), Array, 0, Object(Mpdf\Language\LanguageToFont), Object(Mpdf\Language\ScriptToLanguage), NULL, NULL, NULL, NULL)
#2 /var/www/project/web/app/plugins/pdf-print-pro/pdf-print-pro.php(2420): Mpdf\Mpdf->__construct(Array)
#3 /var/www/project/web/wp/wp-includes/class-wp-hook.php(324): pdfprnt_print(Object(WP))
#4 /var/www/project/web/wp/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters(NULL, Array)
#5 /var/www/project/web/wp/wp-includes/plugin.php(565): WP_Hook->do_action(Array)
#6 /var/www/project/web/wp/wp-includes/class-wp.php(835): do_action_ref_array('wp', Array)
#7 /var/www/project/web/wp/wp-includes/functions.php(1342): WP->main('')
#8 /var/www/project/web/wp/wp-blog-header.php(16): wp()
#9 /var/www/project/web/index.php(10): require('/var/www/projec...')
#10 {main}
  thrown in /var/www/project/web/app/plugins/pdf-print-pro/vendor/mpdf/mpdf/src/Cache.php on line 17