Root help

[asfastpitch2009]

I can't boot to clockwork recovery, I have tried numerous times, I get
Novi_check already executed
novi_checking done
update media, please wait
update media, finished
Install from package..'
Finding update package
Opening update package
Verifying update package...
E: failed to verify whole-file signature
E: signature verification failed
Appliing Multi-CSC
Installing Multi-CSC
Installation aborted