Hello to all of you, 

I have a problem with Memcached that I am submitting to your expertise.

I put you the link to the screenshot showing the server configuration: http://51.75.27.51/pref-sys.png , 

as you can see Memcached does not run when we have (normally) correctly configured it for.

The server configuration:

Koha Version 18.11.02.02.02.000

Ubuntu server version 18.04

Looking forward to your feedback, I wish you an excellent day.