Lenovo S6-w displays "Security Problem"+ Little Green Droid

I bought Lenovo s6-w, I rooted, few days ago and now I have a problem. I had uninstalled some programs that comes with system that were irritating and now after I rebooted the phone there is a message SECURITY PROBLEM. Phone works OK , but would like get rid of overlay bottom left, little Green Droid is quite nice, but maybe he should go too.

Look like this Thanks