Mensaje de error
Error generating document: Failed to generate PDF: file_get_contents(http://linguisticayteoria.ugr.es/): failed to open stream: HTTP request failed! HTTP/1.1 404 Not Found
, Unable to load css file http://linguisticayteoria.ugr.es/, Unable to create temporary image in /tmp
http://linguisticayteoria.ugr.es/themes/custom/ugr/images/ugr-color.svg
