Tally GST period

I have free verson of Tally. Every month I used to select date period from statutory report>GST 3B.

But suddenly from this month unable to change date period from 1st June to 30th June.

I am aware of in free verson of tally we are unable to change date. But under statutory>GST 3B section we can change date period. Bht suddenly it is not allowing.

Please share your thoughts to help me out..