PDF Display from DeepSee UserPortal doesn't work

Hello Community,

I hope you are well.
I encounter a problem on IRIS for Unix 2020.1  when I try to create a PDF from a simple Dashboard on Deepsee : 

When I click on this widget , a tab appear and is loading for ~30 seconds, then shows 'error loading the PDF File ' :

I am also using DeepSee Web, and i encounter a problem if I try to Export the graph as a PDF : 

Is there a link between both problem ? ( If I fix the print widget, the PDF Export will also be fixed ? ) 

I found someone having the same problem but she fixed it : https://community.intersystems.com/post/unable-run-oscommand-print-widget-deepsee
I checked in the mgr/Temp file , and i have the "widget.xsl" file generated, but no "widget.pdf"  .

I also tried to execute the following command on  my  docker container : 
 /usr/irissys/fop/fop -fo test.xsl -pdf test.pdf -c /usr/irissys/fop/conf/fop.xconf 

But it results as an error : 
Caused by: org.w3c.dom.DOMException: The current document is unable to create an element of the requested type (namespace: http://www.w3.org/2000/svg, name: svg:link).   

Do you have any suggestion on how to debugg the PDF generation ? 

Thank you in advance.
I wish you a good day 

Lucas Bourré