What version of LumenRT should be installed with OpenRoads designer version 10.07.01.32

I have just installed ORD version 10.07.01.32. During the install process I was prompted to install LumenRT. 

Problem:

1. Installation of LumenRT fails. When trying to activate LumenRT I get the following message. See capture below.

I would like to start using LumenRT.

1. What version is compatible with the ORD version stated above?

2. Any ideas why the install is failing?

Thanks. Cliff