Ada Community debugger won't run

[Rick Newbie <nuttin@nuttn.nowhere>]

Hi,
I just installed Ada and I am working through some tutorials. However I 
am unable to debug. When I just want to start the debugger, I get the 
following lines in the output window

[2020-01-11 05:05:11] Could not find platform independent libraries <prefix>
Could not find platform dependent libraries <exec_prefix>
Consider setting $PYTHONHOME to <prefix>[:<exec_prefix>]
ImportError: No module named site

with a dialog saying "The underlying debugger died unexpectedly"

My system is Windows 10 and I don't think there's anything special with 
it. besides I am getting this same on another computer as well.

So I did some research and I figured that I have to set the PYTHONHOME 
and PYTHONPATCH environment variables manually. I did that and now I am 
getting another error in the output window

[2020-01-11 07:03:28] ImportError: No module named site

But I can't find any useful information about that. Any help is greatly 
appreciated

Thank you