In B1UP 2018.02 we, unfortunately, had a small bug that if you set up our Server Component in a brand new environment it would fail in the final step.
The error was due to the system incorrectly assuming there was an old configuration file and since there is not in a brand new setup, it fails.
If you experience this issue the please download the attached file, and unzip its content to "C:\Program Files (x86)\Boyum IT\B1UP Server component" (it add a Configuration.xml file). Then rerun the wizard and you should not encounter the error anymore.
The error has also been fixed in the 2018.03 release (http://www.boyum-it.com/sbo)