×Close The exit status code '1' says something went wrong: stderr: "xvfb-run: error: Xvfb failed to start " stdout: "" command: xvfb-run -- /usr/bin/wkhtmltopdf --lowquality --margin-bottom '10mm' --margin-top '10mm' --orientation 'portrait' --page-size 'a4' '/tmp/knp_snappy68af5bdce5a9e6.08660899.html' '/tmp/knp_snappy68af5bdce5dd85.92790422.pdf'.