S63 Fingerprint issues

[Albro359]

When I try to create a system identifier "fingerprint" I get an error.
Looking in the log file I see this :

10:16:13.965 MESSAGE s63chart.cpp:140 s63_pi: Checking OCPNsenc utility at {C:\Users\Alan Leslie\AppData\Local\opencpn\plugins\s63_pi\OCPNse nc.exe}
10:16:13.966 ERROR utilsexc.cpp:873 Execution of command 'C:\Users\Alan Leslie\AppData\Local\opencpn\plugins\s63_pi\OCPNse nc.exe -a' failed (error 0: The operation completed successfully.)
10:16:16.079 MESSAGE s63chart.cpp:173 s63_pi: Cannot execute OCPNsenc utility at
{C:\Users\Alan Leslie\AppData\Local\opencpn\plugins\s63_pi\OCPNse nc.exe}
10:16:16.079 MESSAGE s63_pi.cpp:2833 s63_pi: OCPNsenc results:
10:16:16.079 MESSAGE s63_pi.cpp:2836 ERROR: s63_pi could not execute OCPNsenc utility

This happens on both 5.8 and 5.9 running on Win 11.
How can I fix this?

Thanks
Alan