I tried to install the latest 1.6.0b (cr_016_bl280_b.zip) for Blender 2.80. According to the last email I received it should work with Blender 2.80.44 but it's not working. When I try to activate the plugin, I get the following message:
Get the same errors with "install from file" and manually copied to addon folder.
The repaired build installed properly on both my PC's without errors. I will do some more testing and give some feedback. Cheers