×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_snappy6811fbffdb3ce8.19903462.html' '/tmp/knp_snappy6811fbffdb45a3.06265081.pdf'.