The Section in Data class which created using case type step by configure view wizard, that data class section unable to open at personal edition of PRPC.
@AbhilashM16738255 In Pega Personal Edition, some features might not work as expected due to limitations. To resolve the issue, try creating an application by selecting the Cosmos theme instead of the Cosmos React theme.
This should allow you to access and configure the Data class section using the Configure View Wizard without any issues.
A search on PSC would have shown you the following similar post:
Please note that Personal Edition has been retired. You can now use Community edition as described here.