Status 7 error usually connected to the CWM recovery version when flashing cm11 ROM. So, just update your current CWM recovery to the latest one (184.108.40.206) by arco as @ilusi0n_ said and it will be fine.
You may recall that a little overa month ago, we first talked about SideCutsby XDA Forum … more
XDA Developers was founded by developers, for developers. It is now a valuable resource for people who want to make the most of their mobile devices, from customizing the look and feel to adding new functionality. Are you a developer?