Hi Mark,
Interesting article from Joget btw.
After reading your attached error log snippet, I noticed this error cause:
> Could not initialize class com.sun.jna.Native
> Caused by: java.lang.SecurityException: File '/home/ubuntu/.cache/JNA/temp' not within profile base directory
It is likely (or most certainly) that users (or referred to as tenants) in Joget Cloud that is in a shared multi-tenant environment probably restricted the underlying actual machine's tmp directory that Java native JNA library requires to use, hence why this error is encountered.
I tried the tutorial on a on-premise installation (my own localhost in my own machine) and it works fine.
I think this restriction by the cardano plugin pack is likely intended by design to protect against possible tampering of the actual machine's tmp path from other tenants.
TDLR: Try this tutorial on Joget installed on a local machine.
