Blind Scan

I have a vu+solo4k with latest vix image motorised dish I am a newbie, I have managed to scan 5w and 16e but cannot find crtv (cameroon) fta, wanting the Liverpool game tomorrow, I thought maybe a blind scan would work but when I click blind scan in the menu a notice comes up we have to restart, is there some other settings I have to add I have read that blind scan is very good on vix image thanks in advance.