Question about the function of restriction isn't work suddenly

[rightgreen Chen]

I could use the function of restriction before, but suddenly I can't use the function anymore from last Tuesday(3/6). When I tried to set the condition of restriction after creating some page, the system replied the wrong message as below to me:

What should I do?

Thanks.

[Kyle Moseley]

Are you a space admin? Make sure you still have that ability and along with it, the ability to restrict pages.

Are the pages above this one restricted? This page states it is inheriting restrictions. See if you are restricted out up the chain.