You should check whether you need a period profile

What causes this issue?

You entered a control profile in which the the editing type is defined
as <ZH>Display data per period</>. However you have not entered a
period profile.
You can only do this if your application displays a period split when
capacity leveling is called up.

How to fix this error?

If no period split is given when you call up your application then you
should maintain one in the control profile in Customizing for capacity
planning.

Error message extract from SAP system. Copyright SAP SE.