Profile for time scale & does not exist

What causes this issue?

The profile for time scale &V1& does not exist.

System Response

INCLUDE 'NA_ALLG_NOVERARBEITUNG OBJECT DOKU ID TX

How to fix this error?

INCLUDE 'NA_ALLG_VORGEHEN' OBJECT DOKU ID TX
Check your entries in Customizing for the project planning board.
RESET N1
Define a different profile for the time scale, if necessary.
Enter a different profile for the time scale in the profile for the
project planning board.

Error message extract from SAP system. Copyright SAP SE.