Lots of issues can occur from incorrect activation of Capture One
This KB http://www.phaseone.com/en/search/article.aspx?articleid=1227&languageid=1 here describes the basic activation process:
If you receive: "Profile is incorrect" message when trying to activate, this means you used a different email address when you first registered the software. You can check your account to see which keys are registered:
http://www.phaseone.com/en/search/article.aspx?articleid=1708&languageid=1
If you still need assistance contact support: http://www.phaseone.com/en/SupportMain.aspx