Hello and thank you for your support.
All 14 points in the link you provided were executed succesfully till
Start the Remaining SAS Viya Services where a lot of services failed (on all nodes) as you can see from the capture: 
Also
the Expiry Date of the SAS Viya Internal CA Certificate
is 16 april 2027 so less than a year.
What should I do next? Contact SAS technical suppport?
Thanks