Renumber is frozen/disabled

So for some reason when I go to the menu to renumber scenes, it’s greyed out!! And see my attachment where it
says scenes are locked. What the hell? Any help is appreciated. Thanks

Screen Shot 2018-08-01 at 10.19.09 AM.png

Go to menu-Storyboard-Unlock Scene and Panel names.
You may have locked these previously and forgot?

You may be right, let me try it. thanks