Thanks Thomas W I have now continued with the steps on setting up the vpn however I am not able to enable the the UFW I get error messages I was able to disable and restart the terminal, but not enable.
The error message was:
IPtable-restore V1.4.12 Can't set policy on 'Forward' line 4 bad policy name ip6tables-restore v11.4.12 couldn't load target 'Accept ':No such file or directory.
I am following these steps below. I am on step 11.