I can confirm this problem for myself on 5.0. Many people on Twitter and blogs are reporting the same problem. I haven't tried it on 5.0.1 and I won't
Excuse my ignorance but why would you use cameralock on 5.0 or 5.0.1? I thought cameralock only provided the camera icon from the lock screen, which is native in 5.0. Does it do something else as well?