Has anyone got this to work as it should, I have it installed on the machines I need it on but when a user clicks Manage Tracking & linking they get the following error

bcm error.png

I've been scratching my head for days now and can't seem to figure out why it is doing it's I'm also getting an error during installation of BCM saying that it cant repair .net 3.5 and I'm running .net 4

Has anyone got any ideas ?