Session Horns Pro Install Failed

I have tried three times with the Native Access app and every trick I know. I just purchased Session Horns Pro. It downloads OK but almost instantly in the install it gives me a FAILED status. It says check the Knowledge Base but that link doesn't go anywhere.

It is sad I have to go here to a support blog rather than actually getting help.

I guess that is how we do it in the music world.

Windows 11. 11th Gen Intel(R) Core(TM) i7-1165G7 @ 2.80GHz  2.80 GHz